CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS

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Author Topic: Sennheiser HD650 CSD Waterfall Plots  (Read 21857 times)

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thune

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Re: Sennheiser HD650 CSD Waterfall Plots
« Reply #60 on: December 25, 2014, 02:42:00 AM »
Took me way-too-long to get my head around the idea (elaborated above) that if you took 6 various headphones and measured them on all the different measurement rigs, that you don't get a consistent delta between any two rigs -- it is headphone/rig, geometry/wavefront dependent. That is, it's impossible to create a single compensation curve to translate marv->tyll measurements for example, since the delta varies from headphone to headphone and the spread can be quite large.
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Solderdude

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Re: Sennheiser HD650 CSD Waterfall Plots
« Reply #61 on: December 25, 2014, 08:08:21 AM »
That is indeed what I think is the case.

When you take a look at the exact same headphones that have been measured by Marv and Hans (and/or UB) you will see similarities but also differences that can easily exceed a very audible 3dB.
Those differences will also differ from headphone to headphone so a 'standard' conversion between 2 rigs won't be possible unless the rigs are completely the same.

This does put relative differences between a few different headphones on the same rig in a questionable light though as we tend to 'trust' those.
A bit like measuring a speaker in different rooms or at different distances, same speaker, same rig.

It just shows measuring acoustic signals is sooooo much more complicated than an electric signal.
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Use your ears to enjoy music, not as an analyser.

Moonhead

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Re: Sennheiser HD650 CSD Waterfall Plots
« Reply #62 on: January 12, 2015, 01:00:56 PM »
Not long ago I tested LCD3 non-fazor with Alo MK3 and It sounded ok, except the lack of details and soundstage.

Sometime later I tried HD650 straight out of my iPhone and I'm pretty sure I got better details and soundstage, but I couldn't hear what the bassist where playing like I could with LCD3

If Im right it proves how good value Hd650 are and how expensive Audeze are.

Anyway I used a lot Of different genres on both cans, but I always use this track.

http://m.
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Golmang

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Re: Sennheiser HD650 CSD Waterfall Plots
« Reply #63 on: April 13, 2015, 12:02:36 PM »
Hey Solderdude, have you given your HD 650 modification a second thought in regarding a smaller release for others?  :)p6
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Solderdude

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Re: Sennheiser HD650 CSD Waterfall Plots
« Reply #64 on: April 13, 2015, 08:35:37 PM »
The "SeNNator' is actually a small practical joke that originated on another forum and is based on an actual product.
Not manufactured by me, I don't sell anything at all (except headphones I tried and want to get rid of).
But it does exist and could be built by those that are interested once I published how to build one (for HD600's as well by request).

One of the, not really existing, but functional SeNNators is currently enroute to Ringingears that might bring it to meets just for the fun of it when it arrives in time.
It's not a serious attempt to bring something truly unique and doesn't contain any magic nor audiophile parts.
Just some cheap components and LM4562's that try to drive the HD650 it should be connected to.

Those preferring true high end equipment will laugh at it and may even find it just decent or perhaps even rather poor sounding.
Those that feel the HD650 is just a tad too warm and lacks real 'grunt' and does not want to spend top dollar on the next best amp but like balanced sound may prefer the actual product the 'joke' is based on a worthwhile investment as it is cheaper than the HD650 by itself.
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