HiFiMAN RE-400 In-ears Review 2

HiFiMAN RE-400 In-ears Review

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HiFiMAN was one of the first brands to produce high performance in-ears based around a dynamic driver. RE-series in-ears have always provided excellent bang for the buck and are highly touted, even amongst audiophiles. Today, we are taking a look at HiFiMAN's newest RE-series in-ear solution: the RE-400s. The design takes after the RE-0s in some areas through its aluminum housing, but the RE-400s are, other than that, completely new iterations that have been built from the ground up.

Everything from the driver and onward has changed, largely due to the new small diameter dynamic driver that has been in the works for quite some time, and the RE-400s use this completely new 8.5mm dynamic driver. It should perform quite well across the audible spectrum.


  • 8.5mm Titanium driver
  • Neodymium magnets
  • Oxygen free cobber cabling
  • Advanced ergonomics

The Package

HiFiMAN's new retail boxes are sturdy and protect the earphones well during transport. You can read about the main features of the new RE-400s on the front. Its main feature is the brand new 8.5 mm driver, of course.

The bundle for HiFiMAN in-ears has changed with the RE-400 earphones. You only get two double flange tips and one small single flange tip. The tip design is also brand new, with the two flanges being very close. This is something I have not seen on any other in-ear, and it works really well for the HiFiMAN design.

The mini-jack is not so mini and is identical to those featured on the RE-2x2 series in-ears. A smaller jack is nice from an aesthetical point-of-view, but the big and bulky might fare better in the long run, since they are more durable.

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