March 15, 2017

In today's day and time, numerous brands have emerged in the headphone space. While some have gloriously made it to the top, the others have been crushed under all the competition.  Most serious headphone brands are competing to give you the best, and although crowned king, the consumer is left confused.

Today, we have the RE400 from HiFiMAN and the MDR-EX750AP from Sony. Both these in-ears are available with a microphone and remote and are great for daily use. Read through this detailed comparison and find the most appropriate choice for your music taste.



Sony MDR-EX750



Design: HiFiMAN RE400 vs Sony MDR-EX750AP

HiFiMAN - RE400

The HiFiMAN RE400 are small and tiny earphones that are extremely lightweight.Designed to look simple, it boasts of no over the top or fancy design. The earplugs have a nice metallic finish, while the back sports a shiny silver finish with concentric circles. The casing itself is devoid of any branding. We love the understated clean design.

The RE400 is connected via a 50-inch long oxygen cable. The cable is wrapped up in rubber from the earbuds to the Y-splitter. The Extended wire from the connector is covered in braided fabric and doesn't feel flimsy at all. The RE400's construction is sturdy to look and feel, and it is worth noting that the L-shaped plug holds better than any other plug.

Unlike the HiFiMAN RE400, the Sony MDR-EX750AP features a body that is comparatively bigger in size. Sony has not designed these in-ears to look over-dramatic. Very simply, they employ a minimalist design. The MDR-EX750AP is available in a choice of three colours - Blue, Black and Red.

The in-ears employ an aluminium housing and are fairly durable. They do not look or feel fragile and can take a fair amount of stress. The earpieces have a nice sheen and we love the bold contemporary design. Moreover, the
 subtle metallic shade of the earpieces is far from bright flashy reds, otherwise used.

Adding to the look, the cable too comes in a matching shade as that of the earpiece. 
To put it in short, the MDR-EX750AP looks pretty cool and has a strong feminine appeal and will make you want to flaunt these anywhere you go. 

Usability: HiFiMAN RE400 vs Sony MDR-EX750AP

HiFiMAN - RE400
Sony MDR-EX750AP

The RE400 comes with a fit and comfort that is exceptionally excellent. The tiny earpieces swiftly fit into your ears and feel like you are wearing nothing. The casing is lightweight which means there is minimum pressure exerted on your ear canal.

What we love about the RE400 is that it comes with an array of eartips included in the package. The double flanged eartips only help in conforming easily to the size of your ears, giving you a perfectly snug fit. The combination of the right eartip and low weight casing is only instrumental in giving your the most pleasurable fit. This means that you can sport the RE400 for hours without feeling fatigue.

The noise isolation is commendable and is more than you could expect from in-ears in this price range. The HiFiMAN RE400 packs with a plethora of accessories ranging from a carry case to a shirt clip and much more.

The Sony MDR-EX750AP fit like any other canal phone. And, you may find that the in-ears do cause some amount of discomfort during long hours of continuous music listening. Furthermore, the aluminium body further causes an increase of pressure on your ears.  

The MDR-EX750AP comes packed with 4 pairs of eartips. And, the right combination of ear tips can aid in giving you a better fit. Getting an excellent fit may be questionable, but Comply's Universal Eartips will solve that problem.

The added length adjuster, helps in keeping cable nuisance away. While, the carry pouch keeps your earphones safe when not in use. 

If you looking for a mic and remote, the HifiMAN HE400 comes in an Andoid and iOS variant that you can choose from. You can be rest assure that your earphones will be compatible with your smartphone. The same can not be said about the Sony MDR EX750AP. Although these in-ears too comes with an in-line mic and remote, they may not be compatible with all smartphones. 

Sound: HiFiMAN RE400 vs Sony MDR-EX750AP

Sony MDR-EX750AP

The HiFiMAN RE400 boasts of sound that is well balanced and naturally pure. They do take some time to warm up but later come with a bang. The non-boosted treble or any other artificial trickery, makes listening to these in-ears an ultimate pleasure. 

The bass, mids and the treble are perfectly proportioned, making it a perfect pair for driving music from all genres. However, if you are a basshead, you will find that these in-ears lack a little thump. That said, the detailing is surprisingly perfect.

The RE400 is just about business. It lends total justice to the instruments as well as the vocals. The astounding clarity lets you follow every beat of the drum and every string of the guitar. The good noise isolation only aids in the best music experience.


The Sony MDR-EX750AP are comparatively fun sounding in-ears. These in-ears don't match up to the legacy of the XB (Extra Bass) series. So what to expect? A relatively flat audio response. 

The in-ears deliver a tight bass, that is not very punchy or thumpy. You do feel the lows, but not as much as uncontrolled bass, that gives your audio an unnecessary boost. The mids are clean crisp and every little detail comes through. The highs do get muffled and sound as though they are buried. 

When it comes to the 
soundstage, it is favourably airy.However, it is not the most impressive soundstage that we have experienced, and the RE400 definitely does a better job. 

The Sony MDR-EX750AP has a more fun sounding flat response and will appeal to Sony fanatics who don't care too much about bass. However, if you are looking for some serious audiophile quality audio, the HiFiMAN RE400 is where you should look. 


HiFiMAN - RE400
  • Neutral, Pure Sound
  • Premium Build
  • Outshining Soundstage
  • Plethora of Accessories
  • 1 Year Warranty
Sony - MDR-EX750AP
  • Flat-Audio Response with a favourable Amount of Thump
  • Stylish Aluminium Housing
  • Decent Soundstage
  • Included Eartips and Carry Case
  • 1 Year Warranty


If you are a guy looking for audio that is pure, then the HiFiMAN RE400 should be your pick. These in-ears offer pleasing audiophile standard sound at a price that does not burn your pocket.

The Sony MDR-EX750AP does not stray too far away from the HiFiMAN RE400 in terms of audio quality. However, when compared to the HiFiMAN RE400, the Sony MDR-EX750AP fails on multiple levels. 

Consult an Expert Now
Still confused? Book a time of your preference and let us guide you through other options, discuss sound and help you make the right choice. Allow us to introduce you to the choicest of products at your leisure. 

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