The RE-400 Waterline by HiFiMAN is a premium quality, high-performance In-Ear Monitor (IEM) that...

HiFiMAN RE-400

Average User Rating:
4.22917/5,
  • The RE-400 Waterline by HiFiMAN is a premium quality, high-performance In-Ear Monitor (IEM) that sets the standard for others to follow. Featuring advanced ergonomics for superb fit, and premium materials such as Titanium Diapharagm, Neodymium magnet and OFC Copper cabling, RE-400 represents best-in-class performance and comfort.

Recent User Reviews

  1. SOULSIK
    4.0/5,
    "Setting an example for everyone"
    Pros - price. neutrality.
    Cons - bass may be lacking for some
    VIDEO REVIEW

    [​IMG]

    ALL REVIEW ARE DONE @ SOULSIKREVIEWS.COM and more insightful review can be found on our site.

    INTRODUCTION

    If you are on a budget then you are in for some good luck because Hifiman re400 might be just for you. Hifiman claims this IEM to be the “waterline” IEM, which means, not only them but the industry should be doing THIS with 99 dollars. Bit of a big claim? But I must say, they deserve the big talk. The re400 is not only small and compact but brings you quality that you would see in much higher end IEMs.

    DISCLAIMER

    The Hifiman re400 was sent me for a review by audioexcellence, a audiophile store in Canada. As usual, my reviews are not bias in any way.

    ABOUT Hifiman

    HiFiMAN Electronics is a designer and manufacturer of audio products including headphonesamplifiers, and portable audio players. Hifiman is known for its high-end audio products made under the brand Mee Audio. Its most popular products include the HE-400 which are full sized open back headphones and the RE-400 which is an IEM (In Ear Monitor). Both products are supposedly critically acclaimed for their sound quality

    SPECS

    Divers: Titanium coated 8.5mm dynamic drivers

    Frequency: 15 – 22 Khz

    Sensitivity: 102 dB

    Impedance: 32 Ohms

    Cable length: 1.33m

    Plug: 3.5mm

     

    WHERE DO I BUY IT?

    If you are in Canada, https://www.audioexcellence.ca/ is the place to go, not only for this product but for any hifi products, their price is competitive and ensures quality service. Their store is well worth a visit if you are located within the GTA.

    Internationally, amazon is your best bet far as I know.

     

    BUILD QUALITY

    HOUSING: the housing is made of aluminum and is very small and compact.

     

    Cable: the cable is fabricated cable up to point of the splitter and then it is

    rubber/plastic material from then on. The slider is metal, which is very nice touch. It terminates in a 3.5mm gold plated right angled jack.

     

    Accessories: A lot of tips for any fit, however I found the comply foams to be the best. A very nice hard carrying case that is practical in size and portability is included. There are also extra filters in case you damage the filters with earwax, which is a nice touch and shows that HIFIMAN wants you to keep the IEM for a longer time.

     

    Overall, the build quality is exceptional for 99 dollars. From drivers to the accessories, it screams quality. Also, the isolation and fit was perfect for me. There is 2 ways to wear it. Straight in or over the ear (found the 2[sup]nd[/sup] fit to eliminate any microphonic)

     
    PRACTIALLY

    This IEM would be something I would recommend my university friends that are not audiophiles because of its cheap price point and what you get for it. With the comply foams, there was much more isolation, however even with the normal tips included with the re400s, the sound isolation was enough to be used in quiet places like the library and loud places like the gym.

    SOUND QUALITY

    GENERAL: These are neutral sounding IEMs. The bass is not as extended as modern bass heads might like it, and this might be a turn off for some people. However, the fact that you can hear the music you love, the way it was recorded, the way it was supposed to be heard for 99 dollars, is something to appreciate. If you are like me and listens to almost anything, these are perfect. You can hear these for hours and hours without any problem because there are no sibilant highs or no booming bass that might bother you in long listening sessions. Everything is clear and represented “the way they are supposed to be”

    Sound Stage: the sound stage is very intimate, which may be a good thing for some and a turn off for others. Again, priced at 99 dollars, these are exceptional in sound stage and imaging.

    Final Thoughts

    Hifiman re400 really did amaze me with its price to performance ratio. I wish to see more budget iems like these in the future. I truly believe they deserve the title of “waterline.” 

  2. flognarde
    4.5/5,
    "Smooth and well balanced IEM's"
    Pros - Delicate and trully musical, timbres, fatigueless
    Cons - Very slightly warm sounding, not as spacious as other's
    I am only listening to acoustic music, So I had no issue with the amount of bass (only plugged to my FIIO X5II, Flac, APE, Highres and DSD files). Even though they are not as tight as on my Shure's Se425 they are well balanced with the rest of the spectrum.
    Slightly on the warm side but perfectly balanced, not in the face , musical, smooth apart from a little peak on the high mids, they have an amazing respect for the timbres, which is for me the main point.
    The relative lack of definition participate to how "liquid" the music is just like in concert. Everything is integrated in a delightfull way, not much sticks out.
    On some tracks I was expecting a little bit more dynamics but I have never heard a pair of IEM's that accomodate so many different style of recordings. 
    Bought second hand (perfect condition) for 40€, it's the bargain of the century.
    Higly recommended for classical music lovers.
  3. achelgeson
    5.0/5,
    "These sound better than $500 IEMs"
    Pros - Smooth neutral sound, amazing soundstage, very detailed yet not fatiguing at all.
    Cons - Supplied ear tips may not get a comfortable seal.
    Where do I start? These honestly sound like the HD600/650 in IEM form. My previous go to IEM was the Klipsch X10 ($100), followed by the Klipsch X20i ($539). What is amazing, is that the RE-400 sound smoother, are more realistic, have better treble extension, AND have better soundstage than the X20i. And these cost just $79! I am continually impressed by these the more I listen to them. They seem to work with every genre too. For classical, they bring out every instrument texture to make them sound realistic. For pop and EDM, they have decent impact and sub bass extension, but are not for bassheads. I would describe them as neutral, and very slightly warm. Some may say they don't have good sub bass, but I disagree. If you are used to Hifiman's planars like the HE-400i and HE-560, you will notice these have extremely similar bass presentation. Mids are fantastic, very realistic and right where they sound be. Maybe slightly elevated compared to most IEMs, but only very slightly. Treble is so smooth, no peaks at all. I must say, the tonal balance is smoother and more realistic than many over ear headphones such as the Beyer DT800 and T1, Hifiman HE-400i, and Shure SRH-940, and sound very similar to the Sennheiser HD600/650 in the mid and treble regions.
    The only con I can think of is the supplied ear tips may not fit people with smaller ear canals like me. The smallest size is ok for me, but doesn't seal as well as foam tips, and the next size up is too big. So I ordered Comply foam tips (the TS-400 size) and hopefully those will get a better seal. However, even without the best seal, it doesn't seem to affect the sound that much, because they already sound fantastic. 
    Considering these sound significantly more balanced and natural than what the Klipsch IEMs have to offer, at under the $100 price point, is a huge accomplishment in my book. You probably wont find a better sounding audiophile IEM under $100, or maybe even up to $300. I wouldn't be surprised if these match the performance of the king of dynamic IEMs, the Sennheiser IE800. Hifiman sure knew what they were doing with these, and I can't recommend them highly enough!

User Comments

To view comments, simply sign up and become a member!