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Somic HD MH463 Open-air Dynamic Pro Headphones (Black)


Pros: Impactful, Nice Detail, Price

Cons: Creaking Frame, Comfort, Design, Availability

Firstly, a big thank you to Joe for helping me get a pair of MH463s smily_headphones1.gif. I've had them now for over 4 months. These are my thoughts.

Out of the box I was impressed: They looks pretty nice, there's reassuring weight to the construction and comfort is serviceable. The body is mostly metal. As established though, long term comfort isn't great: the cups are just too shallow. Most will probably buy with this in mind though, as did I, with intentions of rectifying in the future. There are some issues with frame creaking when turning your head too - can be slightly annoying.

Concerning recent balancing discussion: I can only assume it's a bad batch. I assume mine must be from an earlier production run given the timeframe of buying them from Joe. I have no imbalance on mine. I'm pretty sensitive too. My first pair of M50s had it, and I sent them all the way back to the US for a replacement.

Sound is very good. Lots of space and instrument separation, with a fairly flat response. Nothing seemed recessed or highlighted; I like this. All elements of my music seemed to be given ample representation. The 50mm drivers provide enviable sound and presence. Bass is there, and provides a nice thrum for guitar or atmospheric background drone when called for. If anything, this is where there a bit of bias in the sound. Nothing overbearing though.

After burn-in/100hrs is when they really shine though! biggrin.gif

I would leave my set cycling through my songs nightly. This lasted about a week. Didn't really use them much during this period. When I first did though, wow, I was very impressed! There just seemed to be much more harmony in the music, more cohesion. Not muddy, but full-bodied. Nice and lush and weighty. Separation was further improved, and with a nice smoothness to the vocals. Sibilance is gone too. Coming through the E17 with LOD - I was blown away. The audio quality improved noticeably, and it responded wonderfully with the bass and treble settings.

I had put them on par with my HM5 rebrands originally (which I rate highly), but now, MH463 is king! Done some comparisons and the music just sounds more alive with the Somics. More impact, more space. Instruments and voice are more present. HM5 are no slouch, but these just outclass them.

GET THEM! ...and give them a chance too wink.gif. Out of the box they may not sound like anything special, but given the right treatment, they can sound wonderfully grand. Which brings me to my next passage - how I fixed comfort issues:

As mentioned, the cups are too shallow (they're actually nice and plush however). You can replace with other pads, like from the M50 or the Turtle Beaches for example, or plump the existing pads yourself. I was hesitant on deciding because personal preference varys wildly on the best pad replacement. A lot seem to feel it negatively colours the sound too. I decided to stuff the pads instead.

I originally tried cotton wool, foam and tissue. All worked to differing degrees, but had shortcomings. I had got along on tissue, but they compress and move too easily. It always seemed like a stopgap option. Recently, while wearing the Somics mind you, I was absentmindedly squishing together some silicone earplugs I'd picked up for 50c on clearance. I found they moulded together almost like play dough - awesome! I was having fun messing around when it occurred to me I could use them on the headphones. I took the whole packet and made two strips of equal length and width. They look like snakes. I then sort of moulded them to the underside of the cushion on the cups. It worked surprisingly well. Because they're malleable, but also keep their shape, theyre perfect to act as support. Additionally, the silicone will affix it in place and won't shift. The creaking is better too. When done it raised the cushion padding upward without squashing. The ear pads are now still soft, but raised from the driver housing.

Pretty pleased with the solution! Very comfortable now. I'd advise you to try it out, at the least. I couldn't notice any sound changes. It's probably a placebo, but it seems to improve the isolation. Again, probably a placebo biggrin.gif

Here's some pics. I used Macks waterproof earplugs. You can feel when applying under the cushion the opening for the drivers. There's a circle that enclosing the entire section it. Just make sure you push the silicone back from this. Should be just behind. Check it out:




Kinda compliments the colour too cool.gif


Pros: Great mids and highs.

Cons: Presentation not properly anchored, lacking in midbass! Physically heavy hence not suited for extended listening!

 At budget prices there is not much one can expect from headphone manufacturers. These budget headphones have to balance pricing and performance to be competitive but the Lasmex H75 Pros ( rebranded Somic MH463) seem to have found a decent balance. They don’t look overtly “plasticky”, maintaining a reasonably reassuring build. The metal band that runs across both headphone frame is pretty sturdy and the remaining parts are made of tough plastic. A three year guarantee is greatly admirable and definitely helps the buyer to be more confident with the headphone, ofcourse this may depend on the rebranding vendor. The headband also seems to add considerable weight to the headphone, which makes it heavy over extended listening sessions The markings on the metal band help in making quick adjustments and are much appreciated by users like moi! The headphones have an impedance of 45 ohms and have a 50 mm driver. The large driver makes the headphone quite substantial to look at and most definitely also plays a role in the well resolved sound the headphone puts out (more on that later…). The headphone has an open type construction meaning, there is going to be leakage of music to the surrounding, the size and open nature of the H-75 Pro will mean you would ideally be using these indoors. A 3m cable terminating in a 3.5mm stereo plug with a 6.5mm adapter completes the Lasmex H75 Pro.The earpads cushions are unusually too soft and do tend to compress too much. Though that may not affect all, users like me (not small ears!) have comfort issues. The earlobe tends to rest on the hard plastic containing the drivers and causes comfort problems during extended listening periods. Yet another discomfort is  the sheer weight of the headphone itself! The plastic lining bearing the branding “Lasmex” covering the headband seems to be the culprit, you can always remove that to increase comfort and probably replace it with a third-party headband cushion.


The H75 Pro weaves magic with vocals! I had been listening to the HiFiman HE500 for a few months ago and then moved on since, I did not have the right amplifier and the H75 pleasantly reminded me of that headphone.Yes, the HE500 is in an altogether different league but the H75 does truly have a good, no Great (for the price!) presentation in the mids. Can’t wait to try it on with a tube amp, unfortunately don’t have one at the moment :-( . The headphone portrayed a very natural and sweet mid frequency presentation that is portrayed in an intimate manner than the bass and high frequencies, when supported by the Burson HA160 & the O2 amp the vocals were very good. Ideally, alternative, pop, vocal Jazz and other mid centric content shine with this headphone.Though when the volume is pushed beyond reasonable levels I did not notice some distortion in the mids. The performance of this headphone rests so much on this part of the sound that it is not as impressive with genres like dance, techno and electronic where not much attention is required in the vocals. A beautifully resolved and airy presentation with the right amount of shine. The treble is definitely one of the strengths of the H75 pro. A very rich but untiring treble as observed in other higher end & expensive headphones. The amount of instrument separation and air in the high frequencies is just unheard of at this price point!


Coming from the HD650 it is quite difficult to get used to a presentation that does not put as much intensity and richness into the low-end. The bass on the H75 Pro is quite linear and neutral with some presence of sub bass as well. It does have enough quality, but definitely seems to lack  in midbass quantity for my tastes. This perhaps, has to do something with the presentation style that the headphone adopts. The beautiful mids in the foreground with clean and clear highs seem to demand a suitable amount of low-frequency (midbass) support to really anchor the presentation, unfortunately that’s where the Lasmex H75 pro let me down. One cannot plainly complain about the bass of this headphone, its does make itself felt when called for by the music, but feels slightly anemic.As mentioned before this observation could also be due to the time that I spent with the HE500/HD650 and somehow fixing that presentation as the standard to judge similarly voiced headphones.


The Lasmex H75 Pro or the Somic MH463 is a well executed headphone design with very little drawbacks. The comfort problem is something that would be a pain for some listeners, the lack of a slightly weighty bottom  may as well leave some listeners unsatisfied.Tip! The Somic Ef 82 Mt is another offering that seems more appealing than the MH 463 in terms of sound.


Read the full review at my blog.


Pros: Awesome sound; top-class subbass with aftermarket pads that seal the ear

Cons: Bad stock pads; clamping force too high for large heads

Link to review thread:



Additional notes:

1. Stock sound is neutral with elevated bass but very natural mids and treble and great soundstage.

2. Changing to leather Hifiman pads and taping over the 4 vents around each driver enclosure increases subbass to awesome levels; however midbass to low mids also elevated causing boomy sound

3. The following EQ can be applied to the cans modded in (2) to approach a very natural, neutral sound with very powerful subbass:



Pros: Sound quality. These are unreal.

Cons: Comfort (stock pads, weight), packing quality and contents

Copied from here:


(For reference, coming form SR850s w/ modified pads and Philips Citiscape Uptowns)


Originally Posted by BBEG View Post

Came home from work to find a package from Hong Kong.


Packaging of the 463s is so-so. Looks kinda nice, feels kinda cheap, only accessories to speak of is a plug adapter. Whatever, I'm not buying packaging so this doesn't bother or disappoint me.


Build quality is nice. Heavier than the SR850s and Uptowns. Cable is much better than the Uptowns'. I like that the cups swivel to lay flat, but as these are open phones I probably won't be traveling much with them.


Sound quality straight out of the box... holy crap. First song is Crossfade's acoustic of "Falling Away" side-to-side with the Philips Uptowns, and I'm a little stunned. I now definitely understand what people have said about closed headphones sounding 'closed in' compared to open headphones, but even so I actually like the Somic's sound more (I've been loving my Uptowns, so this is a surprise that a less-expensive pair of headphones sounds notably better). Very good first impression for sound! Bill Withers' "Use Me" (one of my all-time favorites) doesn't sound quite as open, but I think it's the recording; the Uptowns suited that song a little better (made it more intimate, I guess). Bass is more or less comparable with the Uptowns with maybe a little less punch. Gonna need to compare with some 5FDP for that. "Breath of Life" by Florence + Machine goes to the 463's, no contest: the openness adds this epic quality to the song that was meant to be there, but doesn't quite show with the Uptowns. On DJ Fresh's "Louder" (the one, the only, Doctor P & Flux P remix), the closed Uptowns definitely have more impact and sound a little better, even though they lose a little detail to the 463's.


Comfort: first impression is cramped ears. The ear pads definitely need to be thicker and deeper. Gonna find a way to make this happen. The Uptowns are orders of magnitude better for comfort, and I actually know the meaning of that phrase!



Overall, I'm really liking what I hear. Big thanks to Joe (and 3AM insomnia) for introducing me to these bad boys.


The lacking of comfort is the only reason I can think of not to give these 5 stars. Even then, the sound quality, especially for the price, really tempts me to. But the comfort issue is a real one: the stock pads are not very deep anyway and compress very easily, leaving your ears cramped up against the driver grill/vent/thing. Replacing the stock pads with these from Turtle Beach ($14 shipped to the SE USA) fixes any problems one can have with their comfort. I can't speak to changes in sound quality at the moment, but at the very least they sound as good as they had before. The top headband is so-so; it can be better but isn't bad.


Not sure how to rate 'Design'. They do not have detachable cables, so I suppose that's a minus. The 3.5 plug is rather nice and secures in place very well. The cable is certainly long enough and doesn't seem to tangle easily or induce cable-related noise. The cups rotate so the headphone can lay flat, say in a backpack, which is a convenience I haven't had before. The top headband pleather pad can be improved by widening it, but it also collapses easily like the stock ear pads. I hear people complain about the creaking as you turn the ear cups but it doesn't while they're worn so I see no issue with them (except as a point if a "polished" product).


Find them. Buy them. They're worth every penny and many, many more.


Pros: Sound quality in general (especially high mids and soundstage). Sonically comparable to headphones four times its price. Costs less than a night out.

Cons: Bass gets boomy. Atrocious pads. Arrived dirty, despite buying new. Questionable build quality. No detachable cable, case, or other accessories.


First impressions of these bad boys (coming unamped from a Motorola Xoom, because I spent the week at my dad's, while my audio equipment spent the week at my mom's) were not good. The bass was boomy, the highs were non-existent, and the mids existed in a state of recession that could put 2010 USA to shame. The only thing that made them comparable to Sennheiser was a comically overstated veil. Despite this, I kept listening to them, finding these qualities to become less and less apparent over time. Yesterday, I tried them out again, and to my surprise, they finally started sounding like the HD600 competitors Head-Fi has been touting them as. Perhaps spending 6 hours outside in the Michigan cold while I was in school impacted their sound quality.


The MH463, after burn-in (literally) sounds wonderful. Highs are present, but not "sparkly"/obtrusive. Lower mids (especially male vocals) are a bit recessed, but they do an excellent job at bringing female vocalists to the forefront. Soundstage is wide, obviously, with this being an open-backed headphone, but not to the point of sounding "gimmicky". Bass packs a definite punch, but can get a little sloppy on tracks with a lot of low bass (that "boom, boom, boom" crap). As the bass is this headphone's major problem area, it goes without saying that the MH463 perform best with acoustic, classical, rock, and other genres that don't involve subbass.

Only one small problem. Although the Somics sound excellent...that's about all they do right. The build is creaky and rigid feeling (I feel like these things are going to snap in half every time I use the extenders). It is very obvious that Somic spent their money on R&D and drivers, leaving accessories (no case or spare pads) and features (don't expect a detachable cable here) to their more costly competitors. They also shipped a bit...dirty, with residue and other white/grey "gunk" all over the housing. Gross. This isn't necessarily something to complain about, however, as making these cut-backs allows Somic to offer $150+ dollar sound at a $50 price point. Unfortunately, due to this mindset, the Somic MH463 falls victim to having the worst pads ever. Seriously. I can't wear these things for more than 20 minutes without my ears bursting into flames. They also rest awkwardly on the ear, making my ear tips and lobes very uncomfortable. 

Fortunately, the Audio-Technica ATH-M50 has some of the best pads ever, and they just so happen to fit the Somic MH463. I just worked this one out, so I can't give a 100% review of the sound, but it seems to circumvent the bass issues with this headphone quite a bit. 

This is one of the best "sound quality for buck" headphones out there. Just understand that when you purchase these that sound quality is all that you are getting. As we are audiophiles, this shouldn't be much of an issue. Unfortunately, I don't see this headphone serving the needs of people who have other needs. At the end of the day, this is a $200 headphone in a $50 package, but it's still very obvious that it comes in a $50 package.


BASS: Loud, boomy, and kind of obnoxious in bass-heavy genres without M50 pads, but is punchy and articulate in more "natural" ones.
LOW-MIDS: Slightly recessed and distant, but still hefty and with a good amount of "body" to them.
HIGH-MIDS: Exceptional. From 350-700 Hz, the MH463 is unstoppable. Airy, a bit sparkly, and right at the forefront, which is exactly where they should be. The high-mids truly set this headphone apart from everything else I have heard. 
TREBLE: It's here, it exists, it does its job, and it leaves. Not harsh or grating, nor recessed and hollow, the MH463s treble gets done what it needs to get done. You'll know when a vocalist breathes or a drummer hits a hi-hat, but it's not painfully obvious unless the track calls for it.
SOUNDSTAGE: Wide, inviting, definitely not intimate. Things that are hard panned sound like they're coming from about 95-100 degrees left or right (slightly over your shoulder). Everything fills in quite nicely.



DURABILITY: Not great, it appears. This headphone employs a similar strain relief to the M50...and seeing how my M50's strain relief broke, this is definitely vulnerable. Don't move your head back and forth too much while listening, because the MH463s creak like there's no tomorrow. Also, the extenders are very rigid and tight, sort of like the JVC HA-S400. Perhaps they just need to be broken in. 
COMFORT: Without the M50 pads, the MH463 is unbearable for more than 30 minutes to an hour. However, they do have a well-cushioned headband, so once the M50 pads are on, they are an absolute breeze to wear for long periods.
APPEARANCE: They look...decent, I guess. Save for the residue, they appear pretty plain and standard.
ACCESSORIES: Hope you like 1/4 inch adapters, because that is all you're getting.

Overall, this is a must-own for all audiophiles and a must-avoid for everyone else. If you can get past some build quality and comfort issues (I cannot stress getting the M50 pads enough), then you will be treated to one of the best sounding headphones you can purchase for under $200, let alone $50.


EDIT: Turtle Beach X12/X32 pads are much more comfortable than the M50 ones. They can be had from Turtle Beach's website for about $13 shipped to the US.

Somic HD MH463 Open-air Dynamic Pro Headphones (Black)

Open-air Dynamic Headphones

FeatureStereo Gold-plated plugs support 6.3 mm and 3.5mm applications Memory sponge leather earpads for comfort Soft support system reduces pressure on the head Adjustable headband for comfortable long-wearing listening Anti-vibration aluminum to improve audio performance Bobbin-wound CCAW coil for greater sound reproduction
TitleSomic HD MH463 Open-air Dynamic Pro Headphones (Black)
Package Height4 inches
Package Length10 inches
Package Width8 inches
Model Name/TypeMPNEAN/UPC
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