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JVC HAS400W Carbon Nanotube On-Ear Headband Headphones (White)

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? Carbon nanotube on-ear headband headphones;? 40mm gold-plated stereo plug;? Neodymium driver;? Flat, foldable, soft cushioned ear-pads;? 1.2m cord;? White


Learn more about the JVC HAS400W

Model

Brand
JVC
Type
OVER THE HEAD
Model
HAS400W

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the JVC HAS400W

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  • Jesse G.
  • 12/19/2013 1:51:03 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest Value On-Ears

Pros: Sound: flat frequency response 200-20kHz. Flat & fast spectral decay rate. Low harmonic and phase distortion. Good efficiency, flat impedance response. Great tight bass due to fast spectral decay and low harmonic and phase distortions. The bass goes LOW. Not as earth-destroying as HiFiMAN or Audeze obviously, but for a 40mm on-ear I'm impressed. Carbon nanotunes at work.

Comfort: the lightest headphones with 40mm drivers I've ever worn. Soft pads with ample thickness. They couple with my ears the best with the front edge of the ear, and the flattest part of the pads just cover the rear of my ears. More than ample but not too much side pressure, and the pressure doesn't increase a lot with wider heads like mine.

Almost completely white headphones. I like the style a lot.

Cons: The bass is ~3dB above subjectively "flat" response. The bass starts out even higher at first, especially in the lowest lows, but as they burn in the bass boost gets very flat up through ~150Hz, and in general it settles down and the spectral decay also catches up with the mids & highs so the bass sounds tighter despite not having as "diggy" low-lows.

Almost completely white headphones. Very easy to get dirty, and I hope I don't find out how hard they are to clean. These do come in black, but I got them because they are white. I wanted a pair of stylish headphones for once.

Other Thoughts: These took about 40 hours to burn in most of the way. Start out with the loudness soft for the first day or two of burn-in, and then work your way up toward your usual maximum listening level. Do yourself a favor and use a player with ReplayGain to do the burn-in so there isn't any super loudness war'd junk that plays in the middle of the night and pwns your headphones. These do have a lot of power handling, but be careful anyway when doing unattended things with any gear. Heck, you might even like ReplayGain enough to use it just while listening.

I don't like lots of side pressure, and often end up "tweaking" that with headphones that allow it via a steel headband. So these shouldn't press too hard on your ears, but they are tight enough on my head to not worry too much about them falling off while running, for instance. If you're going to sweat at all in these, do yourself a favor and get a black pair. Clean your ears often as well, or you could easily get ear wax onto the white cloth mesh filter/screen protecting the driver which would stain it.

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