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Author Topic: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements  (Read 17840 times)

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donunus

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #20 on: July 10, 2012, 03:18:06 PM »

I find the graph to be perfectly in sync with what I heard with these cans. Laid back, relaxed yet slightly bassy and sparkly. Not totally neutral but simulates a loudspeaker's perspective with the distance of the sound. The hd600 was forward in a direct comparison with the he400 yet they were grainier and more resolving of some parts due to the more filled in upper mids.
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dBel84

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #21 on: July 12, 2012, 06:08:27 PM »

So is this just me or is there an uncanny resemblance?







what we have is T50RP , HE400 , T50RP ( couldn't find a T40RP )

..dB
« Last Edit: July 12, 2012, 06:13:41 PM by dBel84 »
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rhythmdevils

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #22 on: July 12, 2012, 06:10:57 PM »

When I first saw the HE400 driver I thought the same thing, and was pretty excited about them, almost bought them for this reason.  Would be cool to see how the internals differ. 
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Marvey

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #23 on: July 12, 2012, 06:13:49 PM »

Yeah. Just a giant version of the T50RP with similar suspension and magnet design. The traces on the HE400 are very coarse though. Your HE400 driver housing looks better than mine. Mine is some kind of cheap looking translucent white plastic instead of black.
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dBel84

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #24 on: July 12, 2012, 06:16:57 PM »

The driver traces is what I was just looking at

nowhere near the T50rp


I suspect very similar construction though ..dB
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Marvey

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #25 on: July 12, 2012, 06:20:52 PM »

I wonder for HE400s:

  • Is the higher distortion from 200Hz upward a result of the coarse traces?
  • Why is the bass quality so good on these?

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dBel84

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #26 on: July 12, 2012, 06:29:58 PM »

Fang's designs have always been very crude ( raw diaphragm , not finished product ) but they have sounded much better than I would have predicted. Bass could be a tension phenomenon ( as could the distortion ) , fostex and many others pleated the diaphragms to improve bass extension..dB
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TMRaven

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #27 on: July 12, 2012, 09:12:09 PM »

Older HE-400 drivers have black frame. Newer ones (post issues) have white frames.  Still would like to see what noticeable effects the velour pads have on these.
« Last Edit: July 12, 2012, 09:16:49 PM by TMRaven »
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tdunn

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #28 on: July 12, 2012, 09:29:17 PM »

Not trying to give anyone a hard time. It's much easier for Marv to take velour pad measurements if someone actually volunteers to send them to him. This is how the concept of "community" works. It's my understanding that most of the measurements we see on this site are the result of the generousity of volunteers who send in their headphones for measurement.
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LFF

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Re: HiFiMAN HE-400 Frequency Response and CSD Waterfall Plot Measurements
« Reply #29 on: July 12, 2012, 09:32:35 PM »

Not trying to give anyone a hard time. It's much easier for Marv to take velour pad measurements if someone actually volunteers to send them to him. This is how the concept of "community" works. It's my understanding that most of the measurements we see on this site are the result of the generousity of volunteers who send in their headphones for measurement.

Words of wisdon tdunn!

I think I have some velour pads.  :)p7
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