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HiFiMAN RE-400 Reviews

Positive Reviews


RE-400 Waterline: Audiophile kill, Budget bullet.


Pros: Magical mids. Warm lilt in the neutral sig. Fast, accurate and punchy mid-bass. Extremely comfortable. Easily driven,

Cons: Sub-bass presence is low. Treble might be too smooth for some. Isolation is average

Packaging and build:  The packaging is minimal and exquisitely so. The extra tips filters and manual are behind the felt coated foam holding the earphones. As I gingerly dislodged them from the grooves, I was struck by how tiny they are. I always try to avoid gripping the strain relief as a precaution, but it was difficult considering the size. The shiny bead blasted aluminium back goes well with the brushed aluminium housing. Which brings me to the build. This is the most common qualm people have reported. The plug is beefy, the y split seems sturdy enough. However, I noticed that some free movement of the cable is possible at the entry point of the strain relief. As long as...
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Great all-round IEM for a great price


Pros: smooth sound, good detail retrieval, forward midrange, tight bass, extended smooth highs, excellent imaging and separation, decent soundstage width

Cons: bass a bit soft in punch at times, initial build quality

HiFiMAN RE-400 Waterline - Ultimate Review w/ pictures   1)Equipment and cabling   a)Headphones   HiFiMAN RE-400 Waterline   Type: Closed, tiny, in-ear, dynamic driver monitor Frequency response: 15 - 22.000 Hz Impedance: 32 Ω (may vary by up to 10%) Efficiency: 102 dB Weight: 16 g (with cable)     This was my first in-ear-monitor purchase. Also the very first IEM made by HiFiMAN. Their cheapest headphone yet, priced at 100 USD. How will these compare? They share the general HiFiMAN house sound and neutrality and offer good build quality as well. There is a dedicated RE-400 review below...
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Negative Reviews

Apex Eight

HiFiMAN RE-400 Review

*REVIEW UNDER CONSTRUCTION* 4/12/15 - I've deleted my entire review and will be completely revising/rewriting it.    Pictures:      

Mediocre IEMs for a mediocre price


Pros: Excellent mids, decent price

Cons: bad sibilance, comically weak bass, unattractive, poor build quality, not very comfortable, microphonics

I bought these in early May based on nearly unanimous recommendation from people on a bunch of websites, and I must say they don't live up to their reputation. Some of the common things people pointed out were that they are excellent for the price, they have great mids, and they have bad build quality, the bass could be better, and that they are great for all genres. Most of these points definitely stand up, I don't think I have ever heard better mids in my life, they are fairly cheap, but to me they have nothing else going for them. The bass isn't just leaving more to desired, it is so bad it makes some genres hard to listen to, it is almost comically weak, more like a tickle than a...
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More Reviews


Good to have, but felt held back


Pros: Neutral, good to have, 45 degree plug

Cons: Neutral, could use a bit more bass, Microphonics

Build / Fit They are much smaller than I expected. The aluminum casing is nothing too special, it looks very clean, and simple. The wires above the split are very thin with a feel like they could break easily if you use then regularly on the go. But, below the split is a very nice cloth cable that leads into a 45 degree plug. The fit seemed very loose, even with the comply tips.   Sound Neutral with a very slight rise in a bass. For the price, even for the $99 MSRP, they are incredible. The detail and sound stage are as good or better than some full sized headphones I've listen to. IMO the bass could use just a bit more impact?, not too much though. The Highs were just great,...
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HifiMAN's Magnum Opus


Pros: Balanced yet slightly warm and sweet, beautiful and realistic mids, price

Cons: Lack of sub-bass and a tad sparkle, microphonics

After I bought the HD 598s, I was soon looking for a portable set of headphones or IEMs for casual use on the bus or outside. Sure enough, I found the lauded HifiMAN RE-400 to be an interesting option and even with concerns of durability and the possibility that a neutral sound signature wasn't for me, I bit the bullet. Were they worth it?    Comfort, Design and Accessories:   I found the RE-400's to be well-designed overall, featuring a rather large plug and a cable comprised of both cloth and rubber. The drivers and the casings surrounding the drivers are rather small, which is a definite plus for portability. They also come with a wide array of tips and a rather...
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Sound is worth $300, build quality is worth $20


Pros: Absolutely heavenly sound. Unbeatable at this price point

Cons: Build quality on my unit is a joke. Cable is falling apart 2 days in.

***This is a tl;dr: review. please refer to other reviews for a more in-depth analysis on their amazing sound.*** For $100, you simply won't be getting anything better sound-wise than these cans, and a lot of happy owners will back me on this one. The mids are heavenly, the treble is smooth yet detailed, and the bass is tight and accurate. However, don't buy them just yet. The build quality is not up to scratch. In fact, when I asked the saleslady for these cans, she immediately suggested that I get it recabled from the get go. How I wish I took her advice. Barely 48 hours in and the cable on the right earpiece is fraying, just below the strain relief. The copper has gotten exposed, and...
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Very good overall


Pros: tactile balanced sound, good details for price, light and comfortable that looks good as well.

Cons: a little lacking in sub bass.

I have been using RE400 for over few months now. these are rather well known and well documented so I will only put stand out points that I think make it unique. Build: Light weight, made out of aluminium. Chord is fabric covered below y splitter. above that its plastic. no microphonics if i wear them from above my ears. Otherwise it can be bothersome. Jack is 45 degree. Overall looks solid and mine is working well without problems. Comfort and isolation: Comfort is above average. Isolation is great if I use comply tips, otherwise I think its above average. I do need to insert them a fir bit in my ears to get a good seal, more than other IEMs I have used. Sound: Two words that best...
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the best 100 dollar phone if you are not after bass .


Pros: bass decay , speed , details , clarity , instruments separation , top end spark , nice cable .

Cons: some veiling in the mids , bad cable clip , if that is a thing .

 i totally would like to believe that there is no earphone brand as admired as hifiman , at least admired by purists , and the small and cute re-400 is not an exception , its a total value phone and every penny is best invested .  yes these phones lack some sub bass and dont hit big like a bass phone cuz its nothing close to it , it is more of a mid centric phone and is as balanced as i wish , now im not a fan of booming bass so i like re-400 more than S5 or ckx-9 , sound stage is good , i like it , good depth but narrow , vocals are a bit veiled thats all i can fault about , instruments are really clear and i love this highs , good energy and good extension , sonically these...
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Amazing sound quality!


Pros: very detailed warm neutral sound which is fun to listen to!

Cons: bass (I know its neutral and I shouldn't have high expectations for it :))

Arrived in a very elegant package, this "waterline" labeled RE-400 model looked very sharp. Just like with HM700/RE-400B, a lot of attention was paid to presentation of the product to the point where they actually had to include the storage hard zippered case with extra eartips in a separate bag so it doesn't interfere with a slim profile of the original RE-400 package. The headphones were sitting inside of a felt lined foam insert with cutouts for extra eartips. Furthermore, more eartips were included with a storage case. When it comes to accessories, HiFiMAN never disappoints. In addition to headphones and storage case, they included 3 pairs of bi-flange eartips, 2 pairs of smaller...
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Another fine offering Dr. Bian


Pros: Cost, impedance, accessories...HiFIMan sound

Cons: I like the fit of my old RE-262 better

I got these as a backup to my RE-262.  I wanted something I could run without an amp.  The 400 provides that refined HiFiMan sound I have come to admire.  The 400 absolutely squares up with my 262 when amped, but I really got them so I could run lighter (just a dap), they totally impress in this regard. I think I may be the only one that really liked the twist-to-lock fit of the 262, they just work perfectly for me.  Moving around I loose the seal on the 400 a bit too easily, but there was a generous helping of tips to play with including comply which I have never tried.  I am quickly becoming a comply convert.   Phone + amp + dap too much for your...
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RE-400, a dangerous masterpiece IEM


Pros: Sound, Sound, Sound, Comfort, Isolation

Full review here: http://www.head-fi.org/t/666851/review-hifiman-re-400-waterline-the-next-step Sound: The RE-400 is quite easy to drive, but not the easiest. Better than the 64ohm RE-0, but like other 32ohm phones I owned, these need some extra volume to sound better and a bit more to shine. No amping is needed, though.   The new RE-400 is not just an improvement in design, fit and isolation but especially in sound. The overall sound is neutral with a small added amount of warmth, which gives a fuller sound and better balance through the whole frequencies. Nothing is overpowered, nothing is missing.   Starting from the low-end. These are NOT for bassheads or for...
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RE-400: A Reference Design


Pros: Sensible and comfortable design, balanced sound quality, fantastic value

Cons: Overly large plug, sparse included accessory selection

Along with the summary below, I have posted a Youtube video review of the RE-400. If you like the video, check out my channel for more reviews :)     Summary   BUILD   The RE-400 has a sensible, well thought out design. Of special note is the half-rubber / fabric cord which cuts down on microphonics. The RE-400 is comfortable to wear with cable up and the metal earpieces seem quite durable. However I find the plug to be overly large and can be difficult to accomodate in some pockets. The included accessory selection is quite poor, with only a few tip sizes included. Unfortunately I could not get a good seal with any of the tips and ended up using...
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Great IEMS, however..


Pros: Great Sound, Very good design, very comfortable

Cons: Slight durability issues, as Left side of the IEM is already cutting out

I ordered these when my Astrotec AM-90s finally bit the bullet. Liking them so far, however the Left side is cutting out possibly due to a short on the plug.   Messaged HiFiMan and hope I get a replacement. I would had given a 5/5, but I'm knocking off 1 1/2 stars due to the durability problem.   I hope its just this one and it doesn't happen on the replacement.
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