RHA MA750i


100+ Head-Fier
Pros: aluminium design Made in Europe nice packaging
Cons: averything is wrong sound balance is no bass plenty of harsh treble
This is the worse purchase i did in audio ever.
RHA should be ashamed releasing such a poor quality product.
And the audio press should be ashamed not to mention this is well below average ...
I think I will not even give it away just throw in the WC where it should never have come out.
Doesn't deserve to say more.
And do not hope that anything can better it. no tweaks , no burn-in, no hope.
So sorry mayorblurps.  Those MA750i are just awfull  when compared to ANY iem  on the market - I  repeat ANY  iem sounds better than MA750i, even stupid little $10 ones ... Thought worthwhile to mention this very clearly before anyone else does the same mistake as I and buys one like I stupidly did.
Head-Fi readers deserve to be aware about  ****ty products too. And there is nothing more to say that this is the worse product I have heard in the whole of my life Baby..  I feel offended by all the reviewers that did not mention this. However some did say it was **** I should have read their review before.
I bought the Ken's a few years ago, and I do recall that they needed some burn in time.

At first they sounded ok but not amazing - nowhere near as awful as you infer - so i carried on using them. I then read up about them needing some playing time, so let them run continuously over a weekend.

After that, they sound so much better and I could genuinely understand what people were raving about. The M750i's need a small bit of TLC - and a good fitting era tip - but once done, that sound and perform very well. It should also be noted that they are one of the best builds out there. Of all the IEMs I own, they are the only pair I know will stand up to serious outdoor wear and tear. They're pretty indestructible.

I hope you give them a little more time and a good burn in - hopefully that will ease you concerns over their performance.
They really do sound good but right out of the box they don't.
Their balance is way off,  treble is harsh and tizzy sounding, bass sounds weird.
But after a day of burn in everything settles down and the detail it presents is amazing, the bass sounds great, the treble smoothens, and the vocals come out really clear. 
Worth the price

Peter Zhang

New Head-Fier
Pros: Great isolation, comfortable warm sound, solid build, premium feel, fantastic service.
Cons: Metal body might take time to get used to (not really a con)
First of all, fantastic sound. Not necessarily *non-biased*, but possesses smooth highs, fantastically defined mids, and rich, powerful, yet completely not overwhelming bass. I accidentally broke my pair(which is completely my fault) and I sent them an email about it, and they sent me a replacement that is brand new. If you're new to hifi, and want a pair of versatile in-ears, these are definitely not letting you down.


Pros: Great soundstage,Isolation,Build quality,Detailed and lush sound
Cons: Slightly heavy,Stock tips,Lacks details in mids

RHA is a Scottish brand that has been around for a few years.The MA750s that I'm reviewing today has been bought by me for around 120$.I'm in no way affiliated to RHA,I just want to share my honest opinion.Here's the official website for this IEM - https://www.rha-audio.com/sg/headphones/ma750.html
About me:
I'm a bachelor.Honestly I don't know much about the sonic technicalities though I can distinguish between different frequencies.I rely on my ears.This whole head-fi thing is new to me(and growing).I prefer rock,country and indie pop.I like neutral to warmish sound.I'm a newbie so I'd request you to consider other reviews as well.
Handmade Dynamic (model 560.1)
Frequency range
16 Ohm
Rated/max power
1.35m, reinforced, OFC
3.5mm, gold plated
Packaging and Accessories:
The MA750s are packed with great care in a premium box having a magnetic flap.The packaging makes you feel the premiumness of the product aesthetically.It looks so stunning.Even the tip holder is made of metal.These looks so sexy.Included were the 2 pairs of comply premium foam ear tips,3 pairs of silicon ear tips and 2 pairs of double flange ear tips.One carrying case and a clothing clip is also there.A detailed booklet has been also provided by the RHA,which is great IMO.Overall the packaging and accessories provides premium experience.
Here are some pics from the official website:
Build Quality and Aesthetics:
The first impression out of the box was the impressive build quality of the IEMs.RHA has used stainless steel as much as possible.The housing is all made of stainless steel.Even the spliter is also made of metal.The cable is quite thick and seems very sturdy.The headphone jack is also made of metal and it is protected by strain relief.And let's not forget that whooping 3 years warrenty provided by RHA that reflects their confidence for the product.These IEMs look very sexy and enchanting.
Fit and Comfort:
Despite being heavy the MA750s are quite comfortable.Initially one might struggle for a good fit,but once you find good fit you will forget about their weight.As these IEMs are made to wear over ear maybe some may not appreciate the design,while I myself like this approach which helps in demolition of the weight.The cable is also lengthy which is a good thing.
Sound Quality:
I honestly did’nt expect much from the MA750s,it turned out that I underestimated them.These requires a long burn in IMO.I would suggest to burn them in for at least 50 hours.The sound tonalty of MA750s is detailed having emphasis on the highs.The overall spectrum seems to be on the neautral side.
The upper bass on the MA750s is detailed and punchy along with spaciousness.While the mid bass and the sub bass lacks the depth and the extension.The sub bass lacks the punchiness.Overall the lows have good resolution.The lows do not seem to be interfereing with the mids in any way.For the price I think the performance of lows is great.
Mids are quite detailed and full of energy.No sibilance is noted.Mids have a full body and are articulate.The vocals lacks the definition and seems dull.Mids are less forward in comparision to other spectrum.Mids definitely lacks the naturalness of the sound.I personally believe the mids could be better on these IEMs.Though considering the price the quality of mids is good and acceptable.
Excellent!!! The highs on these are full of lush and energy.The highs are speedy and edgy,but they are not piercing.Highs have a good texture and definition.It represents spaciousness in the overall sound spectrum.Honestly the highs on these punches way above their price.Bravo RHA!!
Soundstage and Seperation:
If you carve for wide soundstage and good imaging in IEMs,these IEMs will surely satisfy your need.They have enough depth as well as wildth.The instrunemts sounds well articulated and have natural texture.IMO the soundstage and separation is excellent for this price range.
The isolation with the stock tips is average.The comply foam tips are must in order to achieve a good seal and proper isolation.After achieving a good seal you can simply forget everything else and focus on the music.
I won’t be able to compare these to my other IEMs due to my study and hence I won’t be able to justify such comparison.Sorry for the same.However if anyone’s interested for comparison against MDR XB90EX,Shozy Zero,VE Monk+,MDR XB70AP he can pm me for the same.
The RHA MA750 was released back in 2013,though they are excellent value for money if you want engaging sounstage,excellent highs and lush sound.The MA750s let you experience the natural spectrum of the sound.If you’re new to the head-fi journey and want to experience the neutral sound along with a touch of fun the RHA MA750 is the perfect choice.In brief you can’t go wrong with these IEMs due to its lush and energetic sound.

Just a tip many other used reccomend burning them in for a day or two to really bring out there potential. Seriously they sounded average at first but was really rewarded afterwards
Right,the details and tonalty is quite sensuous.@voxie


New Head-Fier
Pros: Tight bass. detailed and warm midrange, crispy and clear treble, wonderful design, excellent build quality, good comfort with a plenty of ear tips
Cons: Lacks a little bit of refinement compared to higher end models, treble can be a bit overbearing, depending on source material, tangly cable
Disclaimer: The kind folks over at RHA provided me a sample of this unit. This, however, will not impact the opinions or the verdict in any way. Shots from the official RHA website.
About me:

I am a young music-lover and former music producer from a little place called Bergen, Norway. My belief is that good sound should be accessible for everyone and anyone, which is why this review is not written from an audiophile perspective. As for my sound preferences, I tend to go back and forth between a v-shaped sound and a somewhat bassy one, with a slight roll-off in the highs, depending on source material. Warm, lively, exciting, powerful and impactful are all appropriate buzzwords. Also, to make my reviews more accessible, I use nothing but a cell phone and a desktop audio interface while testing. But enough about me, let us get to it…
Design and build quality:

If there is one aspect where all other headphone manufacturers need to follow RHA, this is it. These guys are built in stainless steel, which leads them to perform WAY above their price range is terms of quality and build. The cable is also fortified with steel in two places: around the 3,5mm plug, where it connects to the sound source, as well as where the cable splits into two. More on the cable, it feels durable enough for regular use, especially with the mentioned fortifying. However, it does get a bit tangly, which is a bit annoying to deal with. Design-wise, it is also an excellent performer in my book, as I really enjoy their classy, subtle and luxurious looks. This is an aspect many, sadly enough, tend to at least partially ignore. I can therefore happily state that this is not the case here.
Here you can see the design of the MA750i's, where the build quality clearly shines through.

Due to their stainless steel build, they are slightly heavier than most. However, with their over-ear supports, which may not be to everyone’s liking, they stay secure and fit well while not heavy at all. As for comfort, they come with a whopping 10 pairs of included ear tips, two of which are double flanged, with another two made from memory foam. After finding the best fit, which should be pretty much impossible not to given the huge amount of included ear tips and varieties, they stay comfortably in my ear, and I can wear them for hours without any major discomfort issues. You might need to go through a few pairs of ear tips in order to find the one that suits you the best, but once you manage that, there is no need to look back.
All the tips included with these headphones, all contained in a stylish holder.

Now for the most important aspect of all audio products; the sound. As you can see I have split this segment into five parts, with additional thoughts in the final segment.

Lows: The bass is very tight and focused, maybe more than the preference of the average consumer. It definitely has a solid presence, but it manages this without overpowering the rest of the audio spectrum and doesn’t bleed into the midrange. The amount of lows might not be much for average consumers used to overpowering and muddy bass, but its tightness and presence contributes to this IEM bridging the gap between the consumer world and high-end audio.  

Mids: As these headphones feature a v-shaped sound signature, the mids are a bit recessed. They can also be described as warm, which is to my strong liking. Detail, while not winning over much more expensive options, is not a shortage here, and they deliver a present, crisp and clear experience. Also, it is worth noting that while the mids take a little step back, they do not suffer from the weird tonalities and other ruining audible factors.  If I had to nitpick, I would say the upper mids deserve a tidbit more presence. Nothing of major concern, though.

Highs: The treble, unsurprisingly, is boosted as well. Coming from a smoother pair of headphones, these initially sounded harsh. It is also worth noting that this is a common talking point of critics of these headphones. I personally do not believe in “burn-in” as a technical phenomenon, instead being process where your brain gets used to the sound. Anyway, I found the highs to be a bit harsh in beginning, but after some quality time with them, I found myself getting used to the treble. There is plenty of detail here, and they are just as crisp and clear as the mids. However, with me personally being a bit treble-sensitive, they can be a bit too much when playing content heavy on highs.

Soundstage: The soundstage is reasonably wide. Nothing extreme, but it is more than spacious enough, and I doubt that any of you will be dissatisfied with it. Instrumental layering and positioning is good and very satisfying.

Sound overall:

In my subjective opinion, these IEMs manage to deliver a balanced, yet crisp, detailed and powerful sound for a decent price. The lows should be strong enough for most’s liking, but also tight enough to not overpower the rest of the music. The mids are well balanced, rich and warm, but they are a bit recessed, which may be a deal breaker to some. The treble, like the lows, are a bit boosted, but after some time getting used to them they were nothing but a positive experience, livening up dull recordings with that extra bit of crispiness and spark. Overall, I thoroughly enjoy this product’s wonderful sound, and I find it to work well with all the genres I have thrown at it, including pop, electronic and more acoustical performances. They can’t measure up to the refinement offered by some other models, mostly higher priced, but I did not miss it at all.


DSC_04722.jpg These produce an excellent sound for most people, even from portable sources.
Noise isolation:

As a portable in-ear headphone, noise isolation is also very important when using it while out and about. For this type of usage I found it to be as well suited as most other in-ears. It does not feature active noise cancelling or anything like that. Instead, it has as good passive noise isolation as most other IEMs. They block out more than enough commute noise for a listenable experience. As always, some of the lower end gets drowned in the noise, but that is hard to correct without active noice cancelling technologies. The  way it is is more than acceptable in my opinion.

  Who’s this product for?

This product is for your everyday music lover, who is tired of the apple earbuds, and wants something more stylish and better sounding. They have also been described as perfect for “the audiophile on a budget”, which I can definitely agree with. As a first dip into the world high-res, audiophile goodness, these are excellent.

  Verdict: 4,5/5


P.S. For some reason the "audio quality" meter on this article is far lower than it should be. I rank the audio as 9/10.
  • Like
Reactions: trellus
Great review, i have a pair and love em.
No amp needed and a smooth non fatiguing  sound, 
very forgiving, crappy recording will still put a smile on your face.
I wear under my full face helmet, they stay in place and the splitter is long enough to clip on to my shirt a couple of buttons down instead on on my collar. Very sturdy and the cable is long, so it gives you options on device placement. With the right tip they will completely insert and the housing will not protrude past the edge of your ear.
If you are looking for earphones for motorcycle riding HIGHLY recommended.
Just bought myself a pair today and am listening to it through my Luxury & Precision L3. I absolutely love the sound and this article describes exactly what I am experiencing. Tight bass, crisp clear treble, and a recessed mid but still good. Awesome article and is an accurate rating of what these headphones can deliver. For the price, these headphones are definitely worth buying, collecting, and having as part of one's arsenal when it comes to audiophile endeavors and music loving.
Well done!
I can't see the MA750i as being "warm", especially since you mentioned that the treble is harsh--another phenomena I've not experienced. I would definitely call, say, the Thinksound Rain2 as warm, and these are incredibly neutral in comparison.


Formerly known as Res-Reviews
Pros: Excelent build quality, relatively flat sound signature, spacious sound stage
Cons: Cable has too much body, mild plastic color distortion, can be finicky to get the right fit
[color=rgba(0, 0, 0, 0.8)]IMG_0239.jpg[/color]
[color=rgba(0, 0, 0, 0.8)]It’s not often I have the absolute pleasure of listening to headphones such as the MA750i. It’s been more than a year since I’ve gotten my Macaw GT100s, and several months since I’ve lost them. I’ve yearned for a sound similar to them, and the MA750i delivers in a spectacular way. Not only are the MA750i more comfortable and lighter than the GT100s, they also sound much, much better, while retaining a similar overall sound signature.[/color]
[color=rgba(0, 0, 0, 0.8)]I have a thing for British headphone makers, as the Brits have something special in store for me every time I check back with them. RHA is no exception. However, unlike the rest of the crowd, RHA puts a tremendous focus on the engineering aspect of building headphones — and it shows.[/color]
[color=rgba(0, 0, 0, 0.8)]You can buy the MA750i for $130 from the official US RHA store page here.[/color]
[color=rgba(0, 0, 0, 0.8)]Disclaimer: This review is based upon a sample unit provided to me by a manufacturer in exchange for my honest opinion and un-edited words. I do not profit in any way from the writing of the review. I would like to thank Marina at RHA for providing me with a review unit of the MA750i.[/color]
[color=rgba(0, 0, 0, 0.8)]Preference and Bias: Before reading a review, it is worth mentioning that there is no way for a reviewer to objectively pass judgment on the enjoy-ability of a product: such a thing is inherently subjective. Therefore, I find it necessary for you to read and understand what I take a natural liking to and how that might affect my rating of a product.[/color]
[color=rgba(0, 0, 0, 0.8)]My ideal sound signature would be an extended sub-bass with a leveled, but textured, bass. The mids should be slightly less pronounced than the treble, but still ahead of the bass. I prefer a more bright upper range.[/color]
[color=rgba(0, 0, 0, 0.8)]Source: The MA750i was powered off of a Nexus 6P -> Creative Sound Blaster E3. All music was served as FLAC, ALAC, or as 320Kbps Mp3. I found the standard DAC/Amp inside my phone and PC to be inadequate to drive the MA750i at its peak levels of performance.
[color=rgba(0, 0, 0, 0.8)]IMG_0235.jpg[/color]

[color=rgba(0, 0, 0, 0.439216)]Sound Signature[/color]

[color=rgba(0, 0, 0, 0.8)]Treble: Songs used: Supermassive Black HoleAriseFade Into Darkness[/color]
[color=rgba(0, 0, 0, 0.8)]When listening to the MA750i, the first thing I noticed was the energetic treble. It’s unlike anything I’ve tested so far, and is better than the titanium driver-clad GT100s. Furthermore, both treble response and detail is better in the MA750i than the blue-filter Gemini HD.[/color]
[color=rgba(0, 0, 0, 0.8)]Supermassive Black Hole felt incredibly complete and coherent, as much of the instrumentation Muse uses regularly crosses from the mids to the treble — something that causes detail to be lost in less capable IEMs.[/color]
[color=rgba(0, 0, 0, 0.8)]The high-hats of Arise remained clear throughout the entire song, and were spaced well. Each one had a clear beginning and end, and had excellent transient response. The timbre of the instruments represented in the treble is overall very good.[/color]
[color=rgba(0, 0, 0, 0.8)]While not a song I listed as “using” for treble, I find it worth mentioning how sweet the treble of The Drift was. It’s tonal qualities are represented drastically different way from my other headphones, which have usually lent a softer, and sometimes harsher, sound.[/color]
[color=rgba(0, 0, 0, 0.8)]Treble is generally tied with the upper mids for the most “forward” frequency range.[/color]
[color=rgba(0, 0, 0, 0.8)]Mids: Songs used: The DriftJarsIn Bloom[/color]
[color=rgba(0, 0, 0, 0.8)]The mids in The Drift were phenomenal. This is owed to the MA750i’s relatively flat frequency response. The piano sounds natural. Far more so than with other IEMs I’ve tested, barring the M50x which performs about the same on this song.[/color]
[color=rgba(0, 0, 0, 0.8)]The guitars of Jars became alive, and were raw in their deliverance. There is so much precision, you can hear the picking of the strings clearly through the upper-left channel. Vocals were fantastic. You can hear the strain of Pete Loeffler’s voice, and even detect a slight slur in his pronunciation. The clear mids really help provide a good amount of transparency to the overall sound signature.[/color]
[color=rgba(0, 0, 0, 0.8)]Bass: Songs used: LightsBangarang99 Problems (Hugo Cover)[/color]
[color=rgba(0, 0, 0, 0.8)]I find bass to be a tad too dry. Lights has the potential for some really nice bass accentuation, but remained rather surfacey.[/color]
[color=rgba(0, 0, 0, 0.8)]Bangarang is much more tight than I’ve heard it before, which is not necessarily a bad thing. It opens up the song to become more than just its bass response, making it much more enjoyable overall.[/color]
[color=rgba(0, 0, 0, 0.8)]99 Problems had an impact (or the lack thereof) issue. While the detail was there, it didn’t reach far down enough into the bass for me. Some light EQing was able to handily fix that.[/color]
[color=rgba(0, 0, 0, 0.8)]Male Vocals: Song used: Hotel CaliforniaAshes of EdenSunday Bloody Sunday[/color]
[color=rgba(0, 0, 0, 0.8)]Male voices resolve pretty well over the MA750i. I found Hotel California to perform well, with Glen Frey’s voice sounding fuller than usual. Ashes of Eden’s vocals were a tad too dark, but otherwise detailed and clear. Sunday Bloody Sunday’s lyrics were airy and light, and meshed well with the song.[/color]
[color=rgba(0, 0, 0, 0.8)]Female Vocals: Songs used: Stupid GirlSweet EscapeNeed Your Heart[/color]
[color=rgba(0, 0, 0, 0.8)]Female vocals can come off too softly. Stupid Girl was particularly subject to the softening, while Need Your Heart was virtually unaffected. Sweet Escape was in the middle, but still noticeably softer than I remember it being on the GT100s and M50x. However, for every song I tested that sounded too soft, I found two more that sounded just right. Therefore, I can conclude that the fault lies not with the drivers themselves, but the various compression formats and mixing styles of different producers.[/color]
[color=rgba(0, 0, 0, 0.8)]Sound Stage[/color]
[color=rgba(0, 0, 0, 0.8)]Sound staging is among the best I’ve every heard from an IEM. There is an airy width to the stage, along with a large amount of height, and a moderate amount of depth. It’s the first true “3D space” I’ve heard through headphones. As such, I’m not sure how it compares to other IEM giants, but can assure the layman that it is beyond anything you can casually pick up at Best Buy or Target.[/color]

[color=rgba(0, 0, 0, 0.439216)]Packaging and Unboxing[/color]


[color=rgba(0, 0, 0, 0.439216)]Build[/color]

[color=rgba(0, 0, 0, 0.8)]Construction Quality[/color]
[color=rgba(0, 0, 0, 0.8)]Construction quality is top notch. Much of the build is machined from stainless steel. The driver housings are light, smooth, and cool to the touch. I find them to also be very, very hard, and not prone to scratching.[/color]
[color=rgba(0, 0, 0, 0.8)]The cable is solid feeling and textured well. However, in my brief period with the MA750i, I’ve noticed the cable tends to hold its shape too well, leading it to become unruly. Relatedly, bending the cable at anything further than a shallow angle can cause some distortion in the plastic’s color, creating some white spots.[/color]
[color=rgba(0, 0, 0, 0.8)]IMG_0302.jpg[/color]
[color=rgba(0, 0, 0, 0.8)]Engineering quality is RHA’s specialty, and they really leave it all on the table when designing the stress relief systems of their cables. The 3.5mm jack’s connection housing is stainless steel, and has a rubber-sheath that extends onto the cable and is covered by a strong and appropriately taught spring. The spring helps negate a lot of the arbitrary bending force applied to the cable throughout the day, while not getting in the way. I like the implementation.[/color]
[color=rgba(0, 0, 0, 0.8)]The inline controls are also built well. Made from a single unit of machined stainless steel and a soft-touch plastic covering, the MA750i’s Apple inline controls feel and look great. The buttons are sturdy, and have the right amount of give. The cable is reinforced at the points where the it meets the controls’ housing, something many IEMs oddly omit. Microphonics ,while not completely eliminated, are so faint that they are easily ignored when listening on the go.[/color]
[color=rgba(0, 0, 0, 0.8)]Comfort[/color]
[color=rgba(0, 0, 0, 0.8)]Comfort is always a tricky subject, but is more so on over-ear IEMs. Since everyone’s ears are shaped differently, I cannot guarantee that my words here will apply when you try on the MA750i.[/color]
[color=rgba(0, 0, 0, 0.8)]I am using the MA750i with the included Comply tips. This means that in addition to fitting the ear hooks, I also have to compress the foam and press it into my ear, making for a rather tedious 3-step process. However, the reward is well worth the effort. The ear hooks completely disperse any pull gravity has on the headphones, letting the Comply ear tips make the MA750i “disappear” into my ear. So while the MA750i has the potential to be verycomfortable, there is a learning curve to getting them to sit correctly in, and on, your ear.[/color]
[color=rgba(0, 0, 0, 0.8)]Sound Isolation[/color]
[color=rgba(0, 0, 0, 0.8)]Sound isolation is okay. I generally expect more from IEMs that share the MA750i’s form factor, and am slightly disappointed. I could still (barely) hear a snap through my music at moderate levels. However, the MA750i brilliantly blocks out the sound of my mechanical keyboard, and the sound of those around me.[/color]
[color=rgba(0, 0, 0, 0.8)]Inline Controls / Mic[/color]
[color=rgba(0, 0, 0, 0.8)]I’ll never approve of anything less than the inclusion of universal controls on IEMs of this price range. Unfortunately, RHA decided to go the Apple only route, leaving the majority of people who own a smartphone without any volume or rich control functionality. But yes, play/pause and fast-forward functions do indeed work with Android and Windows Phone devices.[/color]
[color=rgba(0, 0, 0, 0.8)]The mic sounds pretty good, and is the best among those I’ve tested so far. I sound clear on the other line when making a phone call, and playing back voice recordings taken over the mic results in a rather clear playback.[/color]
[color=rgba(0, 0, 0, 0.8)]Accessories[/color]
[color=rgba(0, 0, 0, 0.8)]The MA750i comes well stocked with extra earbuds, all of which I found to be high-quality. I especially appreciate the inclusion of two sets of Comply ear tips. The leatherette carrying case is very premium-feeling, and is sturdy enough to give me the confidence to throw this case into my backpack without the headphones suffering any complications.[/color]
[color=rgba(0, 0, 0, 0.8)]IMG_0311.jpg[/color]

[color=rgba(0, 0, 0, 0.439216)]Summary[/color]

[color=rgba(0, 0, 0, 0.8)]The MA750i provides a premium feel, a premium look, and a premium sound. The flat sound signature is not for those seeking jaw-breaking bass, and will be much more satisfying for treble heads and audio purists. If you don’t want to deal with the learning curve of getting the right fit for the MA750i, then you may want to look elsewhere. For everyone else, I highly recommend these IEMs.[/color]
  • Like
Reactions: trellus


New Head-Fier
Pros: Build quality
Cons: dark sounding, lacks detail in the midrange
Build quality is great and they're so much more comfortable than my GR07s.  I really wanted to like them, but I just couldn't get them dialed in.  Even heavily EQing the bass and treble down, the mids still sounded recessed and lacked detail.  The thumpy bass is nice, but the novelty wore off quickly.  I work in the audio industry and I understand a lot of people like a "hot" top end with a fat bottom end - if that's you, then these would be a great headphone for you.  If you're looking for flat response, with detailed mids, then I have to say give something else a try.  I think these would also benefit greatly from an amp if you're considering these for use with a phone or tablet. 
Based on build quality and comfort, if RHA ever comes out with IEM with flat response, it would be high on my list to try. 
  • Like
Reactions: trellus
What else would you recommend? I am also all about mids (I just cant leave my RE400 alone), but I'm looking with something with a mic included. 
With a mic included - good luck.  Right now I'm using my old Shure e2c's that I spliced my Samsung headphone cord into.  I have the Audio-Technica ATH-IM02, but you have pay another $50 for iPhone compatible cord.  I tried ordering an Android compatible mic cord from Lunashops, but it never arrived.  I tried emailing them with no response, so then I escalated the matter via paypal at which point Lunashops refunded my money, but offered no explanation for the missing cord. 
Anyway, the IM-02 is a really flat earphone.  It can actually be a little too revealing at times - sometimes I pick up a high frequency static when I'm streaming music.  I assume the music file is of low quality; I don't have that problem with any of my personal collection of music.  It only happens occasionally, so it hasn't been a big issue for me.  The IM-02 doesn't handle bass boost well and really reveals clipping.   
Hope that helps.


100+ Head-Fier
Pros: Great bass, Clarity, Present highs, 3 YEARS WARRANTY
Cons: No swappable cable, the case looks a bit cheap?
I write reviews only when I'm blown away with a product and this one is one of them. I tried the higher end model, T20i and I absolutely hated it. I thought I'd never buy RHA products again but I did. The 750i pair that I have got sound simply amazing.
The sound is a signature dynamic driver sound. It's not a very bassy headphone. Even if you consider it bassy, the bass does not bleed into mid or highs so the overall sonic signature is very clear. The treble is there and is not annoying at all (like the IE800s that I had). It's sparkly, fun and gives a sense of air to the sound.

They are very comfortable to use as they are over ear. I find the stock silicon tips to work the best. 
The cable suffers from some minor microphonics but it comes with a microphone!!! which makes it ideal to use with a smartphone. 
The best way to judge these is if you try them. They are available at Apple store so do it! You won't be disappointed 

Sometimes, I feel confused in the world of audio! This IEM costs about $100 and it sounds better than a $300 JVC. I enjoy it more than my former IE800 which costs $700. I'm starting to slowly absorb the idea that the price does not necessarily correlate with performance. In addition, lower end models of a headphone company, in this case the 750s can sound better to some than the high end ones (T20i)!


100+ Head-Fier
Pros: Built Quality , Audio Quality , Bang For Buck , Extra Eartips , Stainless Steel , 3 year warranty .
Cons: mandatory burn in required
My last review was the IE800 + iFi iDSD Micro , which i really thought i wouldn't be writing another review of audio products as i sold both of them away due to my enlistment into the Singapore National Service in the Singapore Armed Forces , "Army" as some would call it . 

Well , here i am again as i am allowed to bring these into camp ! 

Alright , after selling the insanely top notch bundle , i decided to settle for something a little affordable which covers my 2 years in this journey here , where i require them to be durable too . Then i stumble upon them , the MA750i , which meets most of my needs , High quality built , excellent audio quality for the price , 2 sets of ear-tips per size in case you lose yours . a luxurious leather pouch . There is nothing much i could ask for considering the price range . 
Similiarly , the reason behind my decision is also the fact that i am a sucker for dynamic drivers , balanced armature just does not sound right to me , regardless how well they are tuned , no way sound resonates as beautifully and naturally as a dynamic driver .

Its sound, is tuned for fun and clarity
great bass quality , lush mids , pleasant high-mids which may be slightly recessed (not an issue, but a character) , treble is acceptable , not harsh nor lacking . overall it sounds well bodied with character and energy , enough for you to justify the price you paid and more . 

The sound signature should appeal to masses.
Energetic, Powerful, Solid, Lush, Warm, Intimate.

The soundstage is wide for a IEM of the price , definitely not as comparable as my IE800 , but at the fraction of the price , it is a very strong contender considering it's price . Instrumental segregation is rather good too. 

if you are looking for an IEM around this price range , do seriously consider these .

An important thing to note would be that they require a fair bit of burn in before they are ready for evaluation , initial out of the box sounds like crap, honestly . Let it to play slightly louder than your usual listening volume for about a day , then get back to it , you'll be impressed . it gets even better with longer duration of use . Many reviewers have also mentioned about this mandatory initial burn in of the RHA required . Just do it . 

Not a plastic in sight . One material i dislike most is plastic , having paid a premium for my things , i hate touching plastic . plastic is a cheap material and it makes your product look cheap , thank goodness none was found in the built of these , steel , rubber and silicone . You can coat the plastic with rubber and i will still be fine with it . hahaha !

Entire IEM have a quality weight to it , its rather dense , but i like my product alittle weighty too , similarly , light IEM makes it feel cheap . I am not particularly sure what is with all these premium materials RHA is using to divert it's competitors to RHA , but it works . Even the packaging is beautiful , when you flip over the black box , the presentation and array of eartips will stir your mind , they will be compelled to give in . trust me . it's like a man's jewellery . 

In my opinion , the direct competitor the Shure SE215 , have got some planning to do , it's a very popular IEM , definately outsell the RHA MA750i , however at roughly the similar price , the Shure SE215 gives you a plastic housing , smaller dynamic driver , connection issues due to wear in the MMCX pin , 1 year warranty , a drawstring soft pouch , a limited number of ear tips , slightly poorer in clarity in mids and treble . Bass quality would be up to your preference , as i could not remember it , but it should be rather close . 

To conclude my review of the MA750i , i would say , if you are deciding on getting an in ear in this price range , go down to your retailer , give it's box a flip , then ask for a demo of the unit , you may just fall in love with it the moment you hold it in your very hands . The sound will then blow you away with it's quality for that price . 

5 star product , solely for all the bang for my hard earned dollar . 


Thanks for the review.
I am still don't decide to buy RHA or The shure...
I am not Shure any Shure product around that price can rival this beast...
I am impressed with RHA MA750i so far.


New Head-Fier
Pros: Solid Build Quality. amazing choice of tips. long cable.
Cons: sound on iphone is terrible.
I bought these on the recommendation of the many reviews on this site and amazon. I purchased it in the apple store and have owned them now for almost 2 years.And frankly am disappointed.
Myhouse growing up was an audiophile's dream. MAny rooms with very high end systems. My Folks are audiophiles, I appreciate good sound but live in an old appartment and can't enjoy. 
Davis and BW speakers are my favourite. I like sound that is rich.
And these headphones sound awful on the iphone. They do sound a little better on my microsoft surface which is of a higher resistance and power. 
This is going to shock a few headfiers, but honestly the $35 apple earpod's sound KILL these. Like no contest. Now if only they would fit well like the RHA's which are a little heavy but ergonomically great. 
I should point that 6 months in I had a few problems and RHA replaced them with a new pair. Their service is impecable. as is their build quality. But when I sit on my balcony with a rhum and coke and want to enjoy some pop, classical or rock or even hip hop I reach for Earphods or Grado sr80;s.
From your preference, I think you may like a really "rich" sound.
Because the RHA MA-750 is definitely on the neutral and "cold" side.
Therefore I see where you are coming from.
The earpods, which give a muddy bass compared to the tight bass of the MA-750,
which may give a false sense of richness.
The 750 will definitely sound too "sterile" and lacking emotion to some ears,
due to its clinical rendition of sound.
I agree with Djinnenjous.  The MA-750s are excellent and blow away some much more expensive phones.  To say that the Apple earbuds KILL them is just ridiculous.  Sorry if I offend, but some comments go way beyond the typical YMMV range.
I have the earbuds and the MA750
Earbuds are ... OK
RHA are awesome in comparison ...
There is a EarPods Hype Thread somewhere


New Head-Fier
Pros: Build quality.Attention to detail.Aesthetics.Accessories.Sound balance.Price.
Cons: Deeper tip insertion required.Audio control buttons need to be more responsive.Case should be rigid.
I had to finally put my Shure E4Cs to rest and have been on the search for months to find a replacement.
I like sub bass and a balanced sound and value build quality. My Shures were built tough but they lacked top end and a little weak on bass. They also had no player control or mic.
I've never had to deeply insert tips with headphones due to the shape of my ear canals so when I got the MA750's I took the same approach.
I went through the range of tips 4 or 5 times trying to find a set that would work. None did - I got the typical issues caused by lack of fit.
No bass and lots of uncontrolled highs - really unpleasant.
I was ready to send them back despite being very impressed with the build quality and design.
I spoke to the supplier about returning them and they suggested one more effort with the small double flange tips suggesting I do the ear lift and insert technique to get them deeper.
WOW - what a difference.
Tremendous range, tight bass and good sub bass on my bass test tracks. Middle slightly pulled back which I like and sweet highs with none of the high distortion I was getting.
They are so quick to use now, very comfortable and can't fault the sound. 
The minor issues I have with them apart from the deeper tip insertion below - mostly for RHA's interest .....
The audio control buttons need to have a better click feel. They are responsive but could have a better click feel to them.
The neck cinch needs to be above the audio control unit (can't cinch up tight to neck).
The case needs to be more rigid and have a spacer in it to offer crush protection.
Not sure the jack 'spring' device used for strain relief  is necessary, already seeing some separation on the coils.
The shirt clip will eventually damage the cord - I've seen better ways to attach the clip than used by the MA750s.
The single tip silicon ear buds are damn hard to get on but the double flange ones are too easy and have come off once or twice in ear.
The internal plastic packaging really lets them down and in fact, the plastic used to wrap the cables had damaged the cables slightly due to sharp edges of the plastic.


New Head-Fier
Pros: Build quality, comfort with sony tips, bass clarity, rich sound, great soundstage
Cons: low highs are harsh - makes a lot of music unplesant
So everything with this IEM is just perfect except the low highs. For me, it is so harsh, like a very cheap IEM. I'm very sensitive about this.
I listen classical, jazz, chill out, breakbeat, progressive house. It is pretty hard to find IEMs which satisfying my needs.
I need exceptional bass quality, warm sound signature, great soundstage. Unfortunately this is not like this. Even the t10i has this problem with the highs, but a little better.
After few hours of listening, it became a little better, but I decided to send it back. (I also tried later in a shop with a more used one, but it is the same annoying low highs)
Instead, I bought a Yamaha eph-100, which doesn't as good as the RHA MA750i in the other things, but the sound signature is perfect, and it seems that is the most important for me.
I used an old Sony MH750's tip. All the other tips are useless for me which came with the RHA. 
I hope RHA can fix this problem later, because I really liked everything else.
you make a mistake, they need a lot of burn in, after 200 hours they are not harsh at all
I get harshness with a lot of iems when I don't get a good seal with them. Did you try different tips or even something like the comply foam tips? Harsh isn't a word I have seen used to describe the MA750s so it would might be a case of a bad seal. If you can try it again with different tips you might be able to alleviate the problem.
Good review nonetheless :)


New Head-Fier
Pros: Bass is just right, great clarity, comfortable fit, media buttons work well, attractive design, excellent build quality, good tip selection,
Cons: Comply foam tips not included, upper mids a bit lacking,
Recently went about trying to find myself an IEM that I liked the sound of and tested out both the Shure SE215 & sennheiser momentum in ear before getting the RHA's. IMO the momentum was too bass heavy, the shure sounded quite good but doesnt look as nice, is more difficult to put on, less comfortable, and can be more sibilant when you push it to higher volumes. The RHA's are exactly what I wanted in an IEM and sound fairly balanced with a bit of a lean towards the bassy end of the scale depending on your choice of ear tip. 
The slight increase in price of these over the 215's is worth it in my eyes because of the shures downfalls I listed above. If you are looking for an IEM in this price range I think its going to be very hard to beat these. These steel buds are definitely a steal. 9/10
*Note: Price is in CAD
I agree, the clarity and sub bass quality is outstanding, at any price, let alone what these sell for. My only problem is getting and maintaining a comfortable complete seal as iI have narrow ear canals and one is smaller than the others.  I will say had a driver basically rupture and separate from the housing.  It was still within Amazon's 30 day return window so I just exchanged them.  I love the detail and the solid foundation the sub bass presents.  Hearing some stories of driver flex and mine failing has me a little concerned but I've got the three year replacement warranty. Just wish the nozzles were a little narrower.  Interesting you find upper mids lacking cause they seem very neutral with maybe a slight emphasis to me.
I am leaning towards the RHA 750i, one question which is not related to the sound performance  is how comfortable are these to wear for long periods of time and how does the mic perform. I spend 75% of my waking hours on conference calls , iphone 6 and rest on EDM .
I was actively thinking about the Bose Soundtrue  but after listening to them in the Best Buy and the warm bass am leaning towards the RHA  even though I have heard good things about the bose comfort for wearing. 
Shure 215 have heard great things about it, but one concern is that it is aging technology. Should I invest in it ?

Bad Wolf

New Head-Fier
Pros: Build quality is astonishing. Tons of accessories. Great warm sound. Overall clarity. Bass Extension.
Cons: Mid-bass\low-mid detail. Cable may be cumbersome.
Gosh, I love these headphones. I bought them after my Xiaomi Piston 2.0 broke, and I have to say, these are a considerable improvement in every department. Now let's get to the review :D
Build Quality - The feeling you get when you hold these and gaze upon their majesty is something to behold. The stainless steel construction makes these super heavy. These things just look so elegant. Another review called these the Aston Martin of IEM's, and I wholeheartedly agree. From the jack all the way to the buds, all they do is scream quality. Bravo to the designers over at RHA. 5/5
Accessories - Oh boy, you get a lot of them. First up is the case. I'm not sure if it's real leather, but I doubt it is. Nevertheless, it's super soft feeling and looks really nice. One complaint, though: It's a little bit big. The darned thing is easily visible in my pocket, and it takes up so much room I can barely squeeze my wallet in with it. And then we have the extra tips. You get 2 pairs of small ones, 2 pairs of mediums, 2 pairs of large ones, a pair of small bi-flanges, a medium pair of bi-flanges, and 2 pairs of foamies. And they all come in a super cool stainless steel (probably) plate. Everything is so gorgeous. 5/5
Sound - This is my favorite part. Let's start with the bass. The bass extends so frickin' low. The sub-bass is absolutely superb. The bass notes in Daft Punk's "Doin' It Right" are so clear and powerful. The bass is very well textured and is tight (although, not the tightest). These are definitely a bass oriented headphones. The mid-bass is where thing start to get a little messy. Just a little bit though. The details in this area are somewhat overshadowed by the bass power, leaving the impression of a somewhat veiled midrange. No to worry. The mids are still excellent. They are a little recessed, but the details are all there. Thom Yorke's voice in Radiohead's "Life In a Glasshouse" is so perfect. The timbre in his voice comes through very well, and the tiny variations in his voice are evident. The horns punch through with impressive clarity and spaciousness. The sound of the reed of the clarinet can be heard with ease. The bass line rolls along with strident confidence, and not for a second does it feel disconnected or out of balance. The treble feels laid back at times, yet somehow it can feel very bright as well. It is very forgiving and is never harsh, to me. treble extension is decent, and overall it is very nuanced and blends in perfectly with the rest of the sound. Surprisingly, these bad boys play well with heavy metal. No matter how fast August Burns Red's drummer Matt Greiner bangs on the double bass drums, the MA750 will play it with ease. The separation on these cans is magnificent. 4.5/5
Comfort - After sorting through the myriad of tips, I found the foam ones played best with my large ears. The 'phones wrap around the top of the ear, which may be a problem for some folks. I wear glasses, and it never bothers me. One complaint about wearing these: when walking with them in with my phone in my pocket, they pick up the static electricity and sometimes zap my ears. It's quite a strange phenomenon, actually. But not at all a pleasant one. 4/5


Headphoneus Supremus
Pros: Unbeatable Build Quality, Beautiful Design, Comfort, Isolation, Instruments, Imaging, Timbre and overall Sound Singature
Cons: Cable might not be so friendly for some
Full review here:

The overall signature is of a very, very wide U-shaped form, with equal and excellent extension on both ends. The bass is very special and takes a really different form than the MA350, RHA entry-fi previous model, and many other mid-fi earphones that the MA750 compete against. Instead of focusing on a strong and thick mid-bass centered low-end, the MA750 offer a flatter response at the mid-bass section. It's still rather strong as dynamic drivers can get, but doesn't show a certain lift or peak. On the other hand, what the MA750 really have is an impressive sub-bass response, with definitely more emphasis than the rest of the bass making it a more refined and less tiring earphone. As such, the bass is deep with a very good rumble quality, well bodied and layered, and yet fairly quick with a natural sense of decay. Not a bass cannon by any means but capable of showing more than enough power when needed. Both the Dunu DN-1000 and Brainwavz S5 have a much mid-bassy signature what might be more 'fun' for some, but this RHA set is more refined and better controlled over those ones.
The midrange of the MA750 is something unique. Neither forward nor recessed, but pretty much neutral in position. It's very clear and open, carrying a fair sense of warmth yet clean of bass bleed, though it does need some period of burn-in to bloom and achieve a perfect weight and dynamics. Even though it's already very impressive from the first listening sessions, personally I found that it took about 200 hrs to settle down and finally show the real strengths. The midrange it's not only well balanced with the lows and highs, but also intelligibly textured and bodied for excellent instrumental and vocal performance. Overall midrange clarity is at least on par with the RE-400, though both single dynamic models differ in flavor; the RE-400 giving higher priority to more forward, effortless and sweeter vocals, while the MA750 is emphasizing instruments a bit more and a bit drier in the vocals dept.
Treble is pretty much a mirror to the bass response. Transition from upper mids to lower highs is very smooth and main treble is relatively flat, or at least doesn't show certain peaks. What the MA750 really have is a stronger emphasis at the upper treble region for better extension and wider stage. With the stock single tips, the MA750 could classify among brighter IEMs; not a 'hot' treble set but yes a sharp one. The R-50M, DN-1000, Altone200, or even the DN-2000, all TWFK dual BA based phones, are expectedly hotter on the mid-treble, more tiring, and probably more prone to sibilance (with exception to the DN-2000 which is surprisingly smooth for a TWFK hybrid phone). The RHA MA750 are not lazy either, but are just more focused at the upper treble. Overall micro-detail is very good, though not as microscopic-detailed as the above BA variants, but really well done for the asking price and higher. Instead of being frontal and analytical, details come in a more dynamic way which requires some time to truly appreciate them.
So far so good, and this RHA model excels in every region. And yet, where I find the MA750 really shine is in stage and instruments, and especially in timbre. Soundstage is rather big and very spacious as usually proud good dynamic drivers IEMs can get. It's wide with equal sense of height and depth, giving a very good 3D surrounding effect. The MA750 sound is bigger than the Altone200 and R-50M but not as huge as the Dunu DN-1000, not to mention the enormous sounding DN-2000 with their much out-of-the-head sound. Actually it could be similar to a balanced well driven Hifiman RE-600. Instruments are way awesome, both in separation and quality. They have the detail, the texture and the weight, and also a very natural decay and right timing. Be it drums, strings, horns or cymbals, all of them are presented in an engaging and immersive way.
And finally, the timbre is "perfect", and personally the best characteristic of the MA750. Not even the hybrid DN-2000 has this beautiful natural tonality, despite their higher detail; but the hybrids' disadvantages are hard to totally avoid. The only set that could really beat the MA750 in this regard is the RE-600, and only when the strong AMP-S amplifier is used (and we're talking about $600+ setup here). Still, all this comes under one condition, the eartips. I tried different tips, including the RHA self MA350 tips, and found that the MA750 stock single tips provided the best sonic results and this great timbre, tonality and imaging.
  • Like
Reactions: trellus


1000+ Head-Fier
Pros: Soundstage, detailing, clean bass, separation, comfort once you get used to it, accessories, build quality, customer support.
Cons: Bad recordings don't sound great, comfort in the beginning, some QC in regards to package cleanliness.
This is my first review on Head-Fi, so forgive me for my trip ups and lack of jargon, as I simply do not have the knowledge or experience to accurately describe everything I hear and feel.

That being said, I deliberated over my purchase of these IEM's for quite a while. For a few months, I had a toss-up between the GR07 BE, Sennheiser CX985, Rock-It R50 and RHA MA-750i. Any one of these purchases would be my 'step' into new territory: triple-digits audio gear.

Before I go any further, I'll describe my previous collection, to provide a little context to the rest of the review. Almost 2 years ago, I was running a pair of MH1's, which I bought when my original Sony Ericsson IEM's were lost. At that point, sound quality was the least of my concern: I just needed a mic and something to hear music with, and most importantly, wasn't expensive. I was pleasantly surprised to see that the MH1's were actually not bad at all, and was raved by many Head-Fier's, as it would seem.

A year later, I bought a new laptop, and since I needed to do quite a lot of Skyping on it, I intended to use my MH1's. To my disappointment, the connectors weren't compatible, so I went out and deliberated over another set of earphones. My eye caught on the Ultimate Ears 500vm, which in addition to having support for my phone (due to an included adapter), also worked with my laptop. My opinion on the 500's were a bit more mixed compared to the MH1: bass was weak-ish for my taste, and it was somewhat hard to drive. Nonetheless, its excellent isolation was incredibly favourable to my daily routine of public transport, so it wasn't a total loss.

When I had a bit more money, I finally decided that I would properly venture into the territory of high-end audio, but baby steps first, I thought. These RHA's, I had hope, would be a successful first step. I would not be wrong.

I don't think I need to go over the packaging in too much detail: countless other reviewers have taken pictures of the packaging, and it is indeed excellent. One problem, however, was pinching from packaging, which somewhat left marks that, thankfully, fade away in time. In addition, some of the tips I got were dirty, and the tip holder was mildly scratched. I was a bit annoyed, but it's not a deal-breaker, considering that everything else was nicely preserved.
Build Quality
One reason why I chose the MA750i's over the others was its apparent build quality. In one word, it's a tank. Cables are as thick as some headphones I've seen, and most impressively the spring on the ends of the connector which act as a strain relief. It works, a little too well at times, but I'll rather have inconvenience than the earphones breaking any day of the week.
The MA750i's came with 10 pairs of tips: single-flanged SML, double-flanged SL and 2 foamies. Of the silicone tips, only the largest of each fit me, and the foamies were unbearably painful for the first few days, in which they softened enough to not destroy my ears.
In addition, the MA750i's also came with a shirt clip (hint: don't hook it to the main cable) which has a 360* swivel on it, and a soft pouch. The soft pouch was a bit underwhelming, but since, in my experience, most earphones break through snagging and not crushing, it's suitable enough. From my personal experience, I would not hold the tip holder in the pouch: the headphones actually scratched the tip holder quite a bit until I realised. Again, this is my vanity sneaking in, so it's not that big of a deal.
I won't lie: these IEM's are heavy. How heavy? Well, when I was turning my head quickly, the IEM's which were hanging off my ear (since I was talking to someone) flew off them and hit my mate's glasses with enough force it knocked them from his head.
That being said, the over-ear design works, to an extent. Since I have don't have large ears, the curve doesn't hook onto my ear perfectly: I compensated by pulling the hook taut then holding them in place with my glasses. Once done, it's incredibly comfy.
That being said, it takes quite a bit of getting used to in the beginning. I thought they were exceedingly painful at first, and it's only after a few days which they became comfy. A word of warning, though: in winter, especially for those living in below-zero (Celcius) temperatures, the housing is freezing, since it's steel. Warm them up in your hand first or else your ears will want to kill you.
Sound Quality
This is probably the area where I can either agree with some people here, or piss them off, so I'll try to be compromising here.
Compared to my MH1's and UE500's, the sound quality was initially bland. I was actually a bit bummed at first, noting how the mids were a bit too overbearing, and the bass did not have a certain 'punch' to it. In addition, the IEM's were either bloody painful or too loose: I opted with bloody painful. Over a few days, however, I gave my MA750i's a chance, and here's where things get interesting. I have no idea if it's my ear getting un-stretched back to its normal size (since my UE500's have quite a deep insertion), my brain got attuned to the earphones or it got burned in, but the MA750i's over time actually became decent.
I listen to a wide variety of music. If anything, I listen to everything besides house music (which is, IMO, a bit of a stretch to classify as 'music' more than 'noise'). The great thing about these is that, while it's not particularly excellent for one genre, it's great for all genres.
For pop music, vocals can shine without being too harsh or sibilant. Female vocals are particularly intimate with these: I am particularly fond of listening to Celtic Woman through these, as the MA750i's can accomplish both intimacy of the solo vocals and exuberance of the accompanying orchestra at the same time.
Classical music is probably my favorite with these: with decent, modern recordings, soundstage and separation is excellent. Piano solos sound decent, no obvious highs poking out anywhere, but orchestral music is where it truly shines for me: the soundstage can be shown off through this. Beethoven's 9th Symphony is particularly impressive on these, with the vocals in the 4th movement synergising well with the sheer energy of the orchestra.
Soundtracks are much the same story with classical: excellent soundstage and separation. More synth-based soundtracks, such as Mass Effect 3's, can show off the MA750's control of bass.
Hip-hop/rap is probably the weakest genre for the MA750i's: not saying they are bad, but they lack the other strengths the other genres display. However, hip-hop/rap does exhibit a quality of the MA750i's: its ability to control bass without feeling like a truck ran over you, and spilling over to the vocals.
The low-mids are one area which, I've realised over time, I don't like quite that much, so a simple EQ fix bumping down the 125 Hz range was more or less the only EQ I did, besides a little bass boost (coz I happen to like more bass :) )
With a few exceptions, the majority of my friends spend ~$20 on their head gear maximum, with some going a bit more for earPods. When they realise how much my MA750i's cost, there first question, usually following their prompts of 'What', is, 'why did you spend that much?' In the beginning, I thought this is the same question as asking why your handbag costs more than my phone, or why your phone costs more than double mine. In other words, if you asked me before I bought these, I would not have known the answer.
Now, I think I do.
Enjoyed reading this. Actually deciding if i should get these for a friend of mine who is looking for an iem with a mic that's in thia budget range.
Well, my definition of 'budget range' is < $50 AUD, but yeah, if it's a very good friend, go for it! Just remember to tell them to break them in for a few days so your ears have a chance to get used to them.
Thanks for the advice on freezing cold weather. I live in northern alberta and I have just ordered these. I was wondering if the build quality would stand the freezing cold -30C average temperatures here? Sometimes getting to -40C during hell week?


Headphoneus Supremus
Pros: Build, package, accessories
Cons: What????
I´m not good to write something about audio stuffs and to write in english but i hope that my experience helps somebody.
For health problems with my ears, i sold all my headphone stuffs.
in my headphone experience history, i had some good amplifiers like Little-Dot MKVI and a unique and massive balanced beta-22.
I had some headphones like Grado HP-2, Sennheiser HD-800, AKG K-1000, Beyerdynamic T1, Ultrasone Edition 10, Audeze LCD-2, Hifiman He-500 and He-6, etc. etc. etc.
And i tried the famous Stax 009
Why the RHA 750i?
In first place, to use when i drive with my iphone 4s.
perfect for this use.
and, of course, to listen music.
i have in my Iphone Radio Tuna and Spotify.
Therefore a lot of music...for free!!!
Honestly, i will not describe the high, the mids and low frequencies; the separation of instruments, the headstage, etc. etc. etc.
It´s a 100€ headphone amplified by an Iphone and without hi-res music.
Well....I´m really happy with the result.
The headphone is fairly balanced with a powerful bass response.
No metallic high frequencies.
I don´t know the result with a dedicated amp/dac like the fiio alpen that i had.
But the headphone returs very well the original sound message.
In my opinion is a best dela considering the price and performances.
and RHA is an european builder.
In the middle of chinese and us products, it´s a good thing.
i posted diferente review details with 100% of audio quality, design and value.
the system has altered my opinion
only for fairness
i heard both the 750 n 600 recently, much prefer the leaner sounding pairing of 600 n my Fiio E18. 750 sounded too bassy on the E18. Maybe it works on the iphone.,shruggs
Also i like the angled plug on the 600. :p
the angled plug is better, no doubt
with the iphone, the bass response is very good and controlled.
i´m sorry not to have more my fiio alpen for a test


New Head-Fier
Pros: That bass (warm and round, it's a massage to my inner ear), detailed, no edges, technically fantastic, relaxing
Cons: Where have the mids/treble gone? No edges, polite, not exciting
Contrary to my intentions of reviewing these when I first got them (similar to my other reviews), I was forced to wait 2 months from their date of arrival. I've found this to be ideal, as it kept me from writing before getting to know the headphones first, especially since I was coming from a longtime close friendship with the RE0s. Here goes...
2013-10-23 – Initial unboxing and first listen
For the next week, casual listening, walking through city streets, metro, bus lines, in home.
No music for 1.5 months (bricked source)
One week ago, started listening to these headphones and then brought the RE0s back out.
Apple iPod Touch 3rd Generation unamped, no EQ adjustments
RHA750 with default singleply size small tips attached
As many have commented, the packaging is superb. RHA has taken the Apple elegance of the personal computer world and presented it to the personal speaker world, and yet maintained their own feel. I was somewhat obsessed with the magnet on the front cover of the box, the one that allows the opener to check out what's inside. It was just the right amount of strength to cause me to do a double-take of whether I was ripping the box or not—and then suddenly break free. Here are the contents.
Immediately upon opening I noticed some flaws in the cord, somewhat disappointing.
In addition, I dislike the cord on these phones. The rubber makes it tedious to untangle and feels weird to me. I was also disappointed when my RE0s returned to me with this type of cord the first time the cord broke. After the most recent repairs, the RE0 cord has been updated to a hard plastic shell and works well for me. At this point I thought the cablephonics must not be too nice due to the cord, and after listening to and walking with them in, I concluded the same thing.
The plethora of tips is always daunting to me because inevitably only a few will fit. I wish consumers could choose their tip sizes they want included with their phones but I understand this is unfeasible for prepackaged IEMs.
The Fit
The Over-the-ear assistors are awesome. This is something I've always wanted on my other IEMs as I normally wear them over the ear. On these it's built in, and totally worth it.
The Sound
Initially, I was awed by the bass and disappointed by the mids and trebles. After my break, I re-examined the RHA750 in a less biased light and have come to enjoy their sound more. I hear accurate renditions of how instruments sound acoustically as well as many details in songs I hadn't heard before, including reverbs, echos, and undertones. One of the aspects I like most about the RHA750 is their ability to push sound through my ears for long listening periods before me feeling fatigued; in fact, I have yet to feel fatigued from them. This is not the case with other IEMs I have. The soundstage is bigger than the RE0, getting both closer to the center of my head as well as wider than my ears.
Though the RHA750 do not have an exciting sound signature, there is nothing technically wrong imo. They are comfortably balanced, and do shine in various songs/genres as I describe in my notes below. I initially felt the mids and trebles lacking; but I realized it was due to the bias from the RE0's shimmering mids/trebles. After the month break, I rather enjoyed the natural balance of the RHA750s and clean, clear sounds from the instruments on my recordings. The RHA750s excel with ambient, post-rock, chillout, funk, piano solos, jazz, and small orchestra. I found them not exciting enough for trance, country rock, house, classic rock, or orchestral music.
The non excitingness is ultimately how I decided on 4.2 stars and the school child metaphor. The RHA750 is technically fantastic. They have a generally safe, reliable sound with no surprises, much like that school kid who did the minimum to get A's. The kid doesn't wow you, but they follow all the rules and do enough to get top marks. Except the bass. I have never heard bass from an IEM like the RHA750s do bass. Warm, round, making my inner ear smile, and perhaps bleeding a bit into the lower mids. Contrast this to the RE0 which I feel surprises me all the time and punches me in the face when appropriate. With the RE0, I want to dance. With the RHA750, I want to sit and listen.
Notes (apologies for lack of variety, as my library is inaccessible right now)
Chris Malinchak - So Good to Me (mp3 320kbps)
Low mids active and present, highs not sparkly
Arty & Mat Zo - Rebound (alac)
That bass, separated instruments, detailed. I'm intrigued how the sound seems to be coming literally from behind the center of my eyes. Then the mid and high riffs comes in, sort of. It's there but, I'm not sure it really wants to be.
James Levine Conducts Mahler 3 - Mov't VI (alac)
The inconsistencies in the recording quality show up. The orchestra is in the distance, instruments are clear, warm. The entrance of the timpani in the final 3 minute cadence doesn't make me jump, as with the RE0s.
Kenny Loggins - Return to Pooh Corner (alac)
Mr. Loggins hits his low note at about 1 minute and I hear all of it, unlike the RE0s.
Phil Vassar - Little Red Rodeo (mp3 256kbps)
Mr. Vassar's reverb, never heard that before that clear. The intro guitar riffs don't punch me like in the RE0.
Ratatat - Loud Pipes (alac)
Bass Line sounds very smooth, handles the bass effect well. More texture than RE0.
The American Dollar - The Slow Wait(1) (mp3 320kbps)
Sound signature of these earphones match this type of music well: long periods of listening, not much edgy, dance motivation. Good pure sound, clean, comfortable, relaxing.
Art Blakey & The Jazz Messengers - Caravan (alac)
Is the piano really sitting beyond my left ear?! The drums perched on the outside of my right ear? Piano sounds warm.
Ne-Yo - Sexy Love (mp3 128kbps)
Bass is round, deep, and warm. Mids are right there, unlike in Rebound. Vocal balance blends well.
Pretty Lights - Out of Time (alac)
This sounds good. These are the phones I want to listen to this music on.
Mat Kearny - Hey Mama (alac)
Too much bass. Other than that, the sound is...polite.
Max Richter - Vladimir's Blues (mp3 320kbps)
Ethereal, I can literally play the air piano and this is how it would sound.
Maroon 5 - Just A Feeling (alac)
First song where I felt the headphones were really there. Details really come out, and the crash cymbals shimmer, finally.
Johnny Clegg & Savuka - I can never be what you want me to be (alac)
The title says it all. When listening with the RE0, it's exactly how I want it to be: unrestrained, mids and trebles singing.
Air - La Femme D'Argent (alac)
I feel like this is how the song is intended to sound. I can see the studio engineer sliding up the gain in the intro and sitting back to give a listen. In contrast, the intro rain has much more energy in the RE0, everything is 'harder', and I want to dance instead of chillax to the music.


Headphoneus Supremus
Pros: Great bass, nice accessory set
Cons: Slight treble harshness with stock tips
First off, I would like to thank RHA for providing @C.C.S.. and I with review sets. I would also like to thank C.C.S. for nominating me for the review sample.
Gear used for review:
PC → Project H (Custom Cirrus Logic CS4398 DAC and O2 with OPA2134 opamps)
iPod Classic → Silver LOD → Fiio E07k
Galaxy Nexus
Nexus 4
Inside the box:
The box looks very nice and professional overall:
Inside the box, you get a great set of accessories. There are six sets of single flange silicone tips and three sets of bi-flange tips, all included on a nifty metal card that helps you keep track of all the tips:
There is also a nice semi-hard case that has space to put the tip card in, as well as the IEMs themselves:
The cable on the MA750s is relatively thick without feeling too bulky. It feels like it won't be tearing anytime soon. The length is pretty standard for most IEMs. For me, this means they're a touch too short. However, I am 6'6” or roughly 198cm tall, so this shouldn't be a problem for most people.
Even though the MA750s are meant to be worn over the ear, there is still a small amount of microphonics from the cable if you do not use the cable cinch at the Y-split to keep the cable from flopping around against your neck while walking. Once you properly adjust the cable cinch though, microphonics are almost nonexistent.
The strain relief on the connector and the IEMs themselves is excellent.
The Y-split seems well built just like the connector. The strain relief for the Y-split is relatively short on both sides, but it feels adequate enough.
While I generally dislike ear guides, I really like the ear guides on the MA750s. The ear guides are not removable on the MA750; they are built into the cable and if someone would try to remove them, they would probably end up with bare wires. This is fine by me though, because unlike a lot of the ear guides that you can snap on with lower end IEMs, or those included in higher end CIEM cables that have very little give to them, the MA750 ear guides have enough flex in them that the weight of the cable will pull the ear guides down and contour to your ears. They seem more like a subtle hint that you should wear the MA750s with the cable over your ear than a potential obtrusion.    
The build quality of the IEMs themselves is top notch. The aluminum shells both look and feel classy and durable.
Isolation is also fairly good on the MA750s. Once you get a good, deep seal (preferably with multi-flange tips), these do drown out most of the background noise, even when I have the volume low (which I usually do to try and avoid hearing loss). They still lag behind balanced armature sets I’ve had, but like most dynamic driver IEMs, the MA750s have a port that allows the dynamic driver to move air, limiting the maximum isolation possible.
Now that I've covered the most of the other stuff about the MA750, let's get to the sound, shall we?
Bass: The bass on the MA750 definitely north of neutral, but not overbearingly so. There is a good punch for most modern recordings, that still sounds coherent with bass guitars and things that aren’t meant to go boom. It occasionally bleeds into the lower midrange, but nothing too severe. I think the quantity is perfect for on-the-go listening. The quality is impressive. Bass guitars never sound muddy and are almost always discernable from the rest of the mix.
Mids: The midrange is, for the most part, balanced nicely in between the bass and the treble, except for a small spike and/or ringing in the upper midrange at approximately 5 kHz. This also adds a bit more detail to the overall sound spectrum though, and there are worse places to have a spike. For the price, you probably can’t find anything that has any part of the sound spectrum other than bass without some sort of spike or a complete lack of upper mids or treble, so this is forgivable, especially when you consider the severity of some treble spikes on other similarly priced IEMs.
Instruments generally sound fairly clear and coherent, probably as good if not better than most IEMs in its class, especially after some EQing, but I’ll touch on that later. Generally, most instruments have a good balance between being detailed without being harsh.
Male vocalists have a nice tonality with plenty of body that never makes them sound thin or unimpressive. Female vocalists on the other hand sound relatively soft and ever so slightly veiled. Some female vocalists, especially those with higher pitched voices, can be affected by the aforementioned spike, though generally it’s pretty minimal.
Treble: I am personally think the treble good on the MA750s, especially again considering its price. Most of the other “basshead” IEMs I’ve heard (Pretty much anything that had any bass response even remotely above neutral) have either completely lacked treble, or had way too much of it. In the case of the MA750, there seems to be a bit of a downward tilt with the treble, though not as bad as similar IEMs I’ve heard, such as the DUNU DN-23, Sony MH1C, and Monoprice 8320. The treble is mostly free from harshness or sibilance, but lacks a bit of treble extension for my tastes. Those who prefer a slightly darker presentation will quite like the treble presentation of the MA750. Once you apply a bit of EQ, the treble really shines.
Soundstage: The soundstage on the MA750s is impressive. I didn’t think it was possible with a bass-tuned IEM, but the soundstage is actually fairly open sounding. No, it will not sound as open as open-backed headphones, but for IEMs at this price point, the soundstage is really good. Better than any of the aforementioned bass-tuned IEMs I’ve heard in the past.
Tip Rolling: I liked the stock tips that came with the MA750, but in the end I preferred tips with a slightly wider nozzle opening, as this almost entirely negated the spike I mentioned earlier. I don’t know where they came from, but I had a pair of bi-flange tips laying around that had a slightly wider bore size and fit the MA750 like a glove.
In conclusion, the MA750 is a great IEM overall for $120. I don’t have a lot of experience with the ~$120 IEM market, but if one of my friends was looking to buy a pair of IEMs in the price range, I would steer them towards the RHAs. They have a great consumer oriented sound that doesn’t do very much wrong and will be appealing to most folks, especially the “beats” generation looking to get something better and cheaper.
  • Like
Reactions: bowei006


100+ Head-Fier
Pros: Well-balanced Sound, Detailed, Extended Treble Response
Cons: Mild Sibilance, Not Neutral
About two weeks ago, I was selected to be a member of a review program that RHA was holding for their MA600 and MA750 IEMs. I had not heard any of RHA’s IEMs at that point and was only vaguely familiar with them and their growing reputation. However, I could not miss out on the potential opportunity to receive a free pair of earphones, so I nominated myself and a friend for the program. He and I both received a pair of MA750 for review. So, here’s my take on the RHA MA750.
Disclaimer: I did not pay anything for this review sample. RHA sent it to me for free. This has not affected the opinion reflected in this review.
The packaging for the MA750 is fantastic. It has a premium look and feel, complete with a plastic display window, allowing the user to look at the IEMs before opening the box. Once you open the box, you’ll be greeted with the IEMs, front and center, and below them, an ear tip holder, carrying 9 pairs of replacement tips, including two pairs of foams and two sizes of bi-flange tips. The large selection of tips is very impressive for the price, and I am glad to see that RHA included so many. A soft carrying case and a shirt clip are found under the IEMs. I would’ve preferred a hard shell instead, but the package is still quite impressive. RHA absolutely deserves credit for all of the things they’ve offered here.
Build Quality:
These IEMs are tanks. Stainless steel earpieces, a thick cable and quality strain reliefs make me feel confident that these IEMs will last a long time, even if you aren’t always super gentle with your gear. I especially like the idea of using a spring as a strain relief before the 3.5 mm jack. This provides plenty of flexibility and, at the same time, feels and appears more durable than what you would see on other IEMs. All in all, I don’t think any user should worry a whole lot about breaking these, as they are built very well.
RHA was right to say that the MA750 was best for people who prefer a balanced sound signature. Make no mistakes, however. These are not for people who prefer a neutral sound. Bass is undoubtedly boosted significantly. Lower treble also features a minor peak that can sound a bit sibilant at times. However, these do sound very balanced in general.
The boosted bass is a good fit for many modern recordings. Beats are big and appropriately loud, without getting in the way of the midrange or treble. Decay is quite fast, so the bass rarely feels bloated or exaggerated, though it can occasionally obscure midrange detail if used without EQ. Bass impact is visceral and even intense at times; coming from a more neutral bass presentation, these surprised me when I turned on some hip-hop for the first time. I could’ve sworn I felt my brain shake for a second. However, I must emphasize, once more, that the boost is not huge. It is large enough to be heard and to be felt, but I did not feel like it got in the way of the rest of the music.
The midrange on the MA750 is clean and features much more detail than I expected from an IEM in this price range. The midrange is not as forward in the mix as the bass is most of the time. Bass bleed carries over slightly into the lower midrange, making this IEM sound relatively warm. This means that, occasionally, some details may be lost to the listener or that they may not be as apparent as they normally are. However, this is usually not the case. The mids, for the most part, feature a good amount of detail and sound more refined than any IEM I’ve heard near this price point. The timbre is also very good, though their warmer nature versus others makes them a little bit less desirable for classical and orchestral music than earphones featuring a more neutral sound signature.
The RHA MA750’s treble is, similarly, very clean. It features a fine amount of detail and is well extended. The biggest problem in the 750’s tuning, however, lies in the lower treble. There is a noticeable spike, and possibly some minor ringing, somewhere between 6 and 8 kHz. This emphasizes vocal sibilance a little bit and can cause cymbals to sound a little bit less natural than usual. Some people may not like this tuning very much, though EQ can improve things a lot. The rest of the treble sounds fantastic. It is detailed enough to detect the use of brushes on a drum kit in jazz and rock recordings. Other IEMs at this price are typically a bit splashier and less articulate, making it more difficult to hear this distinction. If you are not very sensitive to sibilance or are willing to overlook this flaw, the treble is pleasing and can even lend itself well to critical listening.
Overall, I think that the sound of this IEM is pretty well-balanced, even without EQ. It features a relatively warm tonality that most people tend to find pleasing, but does so without significantly rolling off the treble. I think that the MA750 is best suited to hip-hop and rock music, though it makes a pretty solid all-rounder if that’s what you’re looking for. For those who are okay with using EQ, this earphone can be made to sound more neutral and offers an excellent value. For those who are not, the MA750 still sounds great, even if it doesn’t exactly fit the definition of neutral.
Final Thoughts:
The RHA MA750 offer buyers a fantastic value at $120 ($130 for the MA750i version). They sound much better than the price tag indicates and are built to last. This does not mean it is without flaw. It is most certainly not neutral and sometimes I feel like it is a touch too warm. That said, these earphones present better sound than I expected and I am genuinely impressed with them. People who want balanced sound on a relatively modest budget should consider the MA750 the next time they’re on the market for IEMs.
Please excuse the lack of pictures in this review. I only own two cameras. One of these is the built-in webcam in my laptop and the other is the even lower quality camera on my phone (my phone isn't a smartphone and features a camera that doesn't come anywhere near qualifying as a decent point-and-shoot.). I'm sure that mechgamer123's review (the other Head-Fier I nominated to review the MA750) will be more visually appealing.
EDIT (11/05/2014): After comparing against some other low-cost options on the market, including the $100 VSonic GR-07 Classic and HiFiMan RE-400, I can no longer recommend this as strongly as I previously could. Its sound signature strays too far from neutral for me to consider it a high value IEM, when compared against its competitors. Its build quality and very long warranty are still very good selling points, though. For people who are not necessarily after a neutral-ish sound signature, you may want to consider this option.


Headphoneus Supremus
Pros: Deep sub-bass extension. Natural timbre, Impressive mid range attack, 3 year warranty, Sensible pricing.
Cons: Slight mid bass bloat, some vocal sibilance with certain DAPs, Fit might be bothersome for some.

Recently on Head-fi forums I was approached by another member to contribute in a competition RHA Team were holding to review their new MA750 dynamic based IEM.  I knew very little about the company from Glasgow UK or any of their offerings in the past, I didn't even know how much MA750 was worth on receiving them which I think we can look at in a positive way, going in fresh!  I'd like to thank RHA Team for the review sample as it's been a pleasant surprise indeed. Please make note the version I have is MA750 which does not come with the mic/controls.


• 303F grade stainless steel housings
• Handmade 560.1 dynamic driver
• Precise, balanced and articulate sound
• Reinforced, 1.35m, oxygen-free copper cable
• Signature aerophonic™ design
• Premium carry case & tip selection
• Three year warranty
• MSRP: $119.95
• Available 28th August - USA
• Available now - UK & Europe

Packaging and Accessories: 

RHA spared nothing on the packaging of this earphone offering a first class experience, I can say that having purchased IEM's in the $300-$400 bracket. You'll be greeted with a wonderful box containing enough information to fill an encyclopedia, enough for you to sit there absorbing your fresh purchase for hours, mentally preparing for that big moment. Features, like the hand made 560.1 dynamic driver, stainless steel housing construction, and lets not forget that wonderful and lengthly 3 year warranty.  Having a warranty of such time shows RHA are confident in their product. I think that's an incredible thought on their behalf and in all honestly when scanning the construction of MA750 I really do think durability is far above what the price would suggest already, especially the strain reliefs and sturdy cable thickness.  You'll even be greeted with a frequency response chart, that admirable curve for those who like looking at them. 
rha750box.jpg    RHA2.jpg      rhama750chart.jpg
Lets take a look at that great assortment of tips provided and carry case. There's enough tips to suit almost everyone I imagine, everyone except for me unfortunately who has used IEM's for so long now daily I've literally stretched my ear canals? even the largest of  silicon tips RHA provided would'nt keep seal for me. I find this rather frustrating as I'm left with limited tip choices, however I wouldn't let this concern everyday consumers. What RHA provided is more than sufficient offering a ton of options, including single flange, double flange and foam tips options. I will make note the tips are of decent silicon quality, possibly a little thin on the walls, I prefer something thicker, however light and comfortable.

There's also one stylish carry case provided which has more than enough room for your new earphones. If there's something I can't stand when a company makes a carry case assuming you're going to compress your earphones and spend 10 minutes carefully shoving them inside only to need them out again in half an hour. What RHA did is make the case to open like a book for easy and quick access. (has a real business mans approach). The case also doubles as a tip holder using some elastic inside the case.  Mighty nice design and overly functional. It's a little large to place inside a jeans pocket but shouldn't cause concern in a jacket or track suit pants.
DSCF0997.jpg        DSCF0994.jpg      DSCF1003.jpg

Build Quality:

(Including the sound) MA750 becomes very hard to ignore here, that includes sensible pricing. Remembering what I said above in my introduction I knew nothing about the $119 amazon price tag of MA750, on opening the box immediately assumed I was looking at something in the $200 - $300 price bracket. The build is excellent with strong sturdy strain reliefs both on the jack and earphones, a cable thick enough for Tarzan to swing from and superiority polished stainless steel housings. I need to stress here I've shown people MA750 without telling them the price, most easily doubled their retail value. The build is without a doubt solid, durable, stylish and leaks a passion for design. What RHA have done makes you wonder what the hell some other company are thinking.

I do however (although love the look) have some concerns for the jack strain relief where a flexible spring has been used, I see two problems. The first being it actually makes the jack a lot longer then required, this may cause a concern for people using smartphones wanting to place in their pocket and secondly, if the spring flexes to much over time in one direction is it going to lose shape and stay kinked in a 'bent' direction? Time will tell, but for aesthetics plugging the jack into my home DAPs I love it, looks great. The cable is also quite thicker than your standard found on IEM's not sure why RHA went for such a thickness, but the durability will be increased by about double. You can see the cable beside a standard offering by Dunu in one of the pics below. 

DSCF1004.jpg     DSCF1006.jpg      rhama750cable.jpg

Comfort / Isolation / Fit:

Remembering what I said about my large ear canals, I did have some problems acquiring a fit with MA750, there were times I need to readjust the housings to keep seal, this was only sitting still or simply moving my head, I really don't think it will be a concern for others however, I cannot say they stayed completely sealed with my alternative tip selection. When fitted correctly they're however rather comfortable, possibly the hoops could use a little more flex as they tend to try springing back into their original shape due to the thickness. When MA750 is sealed they do isolate fairly well, nothing extreme and I will rate it above average. Keep in mind tip selection is a vital part of isolation and will vary person to person. I must note there is a ever slight amount of driver flex present on both sides if I push terribly hard on insertion, lifting the ear prevents this.

Sound Quality:

Gear used:

Xuelin IHIFI 760
Colorfly C3
Hisound Rocco BA
Hisound Studio V
Sansa Clip+
Tralucent T1 amp
IPod Touch 4G.

All files were 16/44 FLAC files. (50 hours burn in was given before review)



The low end of MA750 is indeed a touch emphasised, the sub-bass extension using my IHIFI player is some of the deepest fulfilling sub-bass impact I've heard from an IEM in this price range, it also has great texture and depth which will easily please the beats crowd, It's possibly some of the most satisfying bass I've heard from a dynamic driver with the Xuelin DAP. I tried some other sources in which it wasn't quite as prominent but still very upfront in the presentation., you'll absorb solid impact and a feeling of satisfaction. There's a slight mid-bass hump which can haunt the mids a touch at times but really it's very controlled for the price, has good speed and remains refined. When you consider MA750 price the low end punches well above that, and a preference role will be played whether it suits the individual in quantity.. For me personally it could become a little overbearing at times and extended listening, but if I wanted to bass out for an hour with some dubstep I was pleased. 


When looking into buying MA750 you will find they sound a touch warm,, dark /thick in the mid range but never fear because detail pushes through overly well, again for the price there's a whooping amount of detail, even pushing near (or to me slightly above) the famous Vsonic GR07 MK2 detail extension. There's also a wonderful natural timbre that has great depth when listening to piano or acoustic instruments, it's kind of unheard of for the $119 price tag and that's why when hearing MA750 the first time I assumed they were worth a lot more. It's kind of bizarre what RHA have accomplished and I wonder if they didn't charge enough? Another thing you'll find in the mid range is good attack of instruments, very switched 'on' quickly pushing instruments out at you, A lot of this also comes down to the speed of their dynamic driver.

Overall the mid range is rather smooth and exhibits a nice atmosphere at lower volumes, but when listening at louder levels comes to the party with class. I must note there are a few of my recordings that showed some sibilance, there's a certain frequency which doesn't agree with MA750. The vocal sibilance I experienced with Xuelin DAP was rather harsh however, I think it may be a source problem because although still present didn't display as severe with the little Colorfly C3 or Rocco BA.


The high end is something I think could use some improvement, if I'm going to be critical. Slightly rolled off to my ears and lacks a little extension, although safe way to approach an IEM it needs a touch more sparkle which 'can' easily be fixed with EQ. There's sufficient detailing levels but comes off a little tinny or harsh with some tracks to me, by no means a lacking or muted treble but it just needs a little more shrill, refinement and a little less 'tinky' sound, I think extension would improve the high end. What you end up with is a slightly darker sound over all due to the emphasised low end and warmer mid range while the treble rolls off a touch early.

Soundstage / Sepertation / imaging:

RHA have done it again, offering a soundstage far above what the price would suggest, it's has expansive width and a pleasing depth to it. you'll certainly hear guitars imaging from the left and right nicely picking out instruments in most directions, it can be a touch congested at times due to the mid bass creeping through however a nicely done job. Instrument separation is also some of the best I've heard in this price range, even to my ears bettering the more expensive GR07 MK2. You really get a sense or slight metronome effect listening to the instruments playing in time which each other, a real clockwork experience as every sample and instrument forms the presentation, It's not the best separation I have if we're going to talk about $650+ hybrids but better than many IEM's I've heard around the $250 price range. So a very well done job in the technicality of MA750.


MA750 handled all genres with style, especially EDM, acoustic, it also handled orchestra well., It's because of that natural timbre and attack speed in the mid range it really gives depth to a song and makes the MA750 incredibly adapted to most genre's. If anything it didn't do the best I've heard for my Metallica tracks, the speed was there but it lacks a little in guitar crunch, though really I am comparing to IEM's double the price such as T-Peos H-200 Hybrid.


I think what RHA have provided for the price is exceptional value, it's not hard to do a quick google search and find some other reviews of this product, you'll see most of us are in total agreement that the value to price ratio is almost off the scale. I've read several reviewers mention the sound quality and build could compete with IEM's in the $200 - $250 bracket so it's not only me I've read it several times. I think next time if they could increase the detail even further and lessen the mid bass a fraction also get some further extension on the treble would be a nice thing to try, but really for this price the value and sound quality is kind of unheard of and I'd recommend this IEM without any problem to buyers looking in the $119-$200 price area. It really is one neat package that shouldn't be ignored, and you can take that opinion from seasoned reviewers like Headfonia and some of our Head-fi members.

Jolly good show RHA, jolly good show, indeed!

Yes they are. Very impressive, also sure sign technology is moving forward!
I'm intrigued; I won't buy anything without a replaceable cable, but if RHA puts one out I will definitely be on board.
H2O: Like you, I have ear canals that continually cause me problems. I was optimistic that there would be a tip large enough when I saw the generous collection RHA included.  Darn!
Did you try any other tips or did you just keep adjusting to get a seal?  Not sure if I want to get these now :frowning2: