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Headphone CSD waterfall plots - Page 19

post #271 of 937
Thread Starter 

Over damped. Dead? Never really thought veil was good word for it either. But then again the cheapest amp I've ever heard the HD650 from was an EHHA. I don't think I've ever plugged in that headphone into a poor matching amp. There was also talk about the HD650 driver being replaced with something more lively sounding.


Edited by purrin - 9/30/11 at 3:53pm
post #272 of 937

Marv, this is all nice but ... where are the 009 results? I see a reference above but can't find the plot anymore (you're posting way too many graphs man ! ;) ).

 

Also, would you be able to do a low frequency test where I can see the diaphragm first resonance?

post #273 of 937
Thread Starter 

^ 009 with 10ms FFT window - good down to 94Hz

 

SR009 L.txt.jpgSR009 r.txt.jpg

post #274 of 937

Hi Marv, 

 

I was more thinking along the lines of a tone sweep between say 10 and 200Hz. The reason is that I suspect the first resonance is below 70Hz...

post #275 of 937
Thread Starter 

Ah OK. Can you wait until the middle of next week? I'm travelling for work. Any data I post is stuff I already have.

post #276 of 937

U gonna drop that Senn plot u freak?  tongue.gif  Stop enjoying your headphones and get back to work.

 

On the Senn veil issue.  My theory is the increased acoustic impedance is from the thicker paper/felt material on the drivers.  I heard the same issue w/ the 555/595 and the 558/598 cleared this problem.  Upon dissection Senn moved to a thinner material that I presume reduced this acoustic impedance letting the driver operate w/ less restriction.  This seems to correlate w/ the mods posted by Apuresound on the Senn HD6xx's.  I can only assume in my ignorance that a proper amp is just able to help muscle the driver through the increased acoustic impedance reducing or negating the effect.


Edited by Anaxilus - 9/30/11 at 9:03pm
post #277 of 937
Quote:
Originally Posted by Anaxilus View Post
Stop enjoying your headphones and get back to work.

If I had those Stax around I wouldn't be doing any work whatsoever. tongue_smile.gif
 

 

post #278 of 937
Thread Starter 

OK posting the HD-25-1 II results in a bit. I haven't processed them yet. Let me get the data and run them through.

 

Sennheiser HD-25-1 II

Impression: Bassy signature, a little bit too much for me. It's another supra-aural, like the V-Moda M-80 I measured last night. What's up with these. They look good - utilitarian - not as awesome of the V-Moda's though. It sounds OK. Not as involving as the M-80s. Hmm. There's some minor ringing. At 4k and 7k is my guess (you heard me say this didn't you?)

 

Plots pending.

post #279 of 937


 

Quote:
Originally Posted by purrin View Post

At 4k and 7k is my guess (you heard me say this didn't you?)


Just did.  tongue.gif  Could have been playing w/ my tubes at the time.  wink.gif  I do remember the rest for sure.

 

post #280 of 937
Thread Starter 

Sennheiser HD-25-1 II

HD25-1 II L.txt.jpg HD25-1 II R.txt.jpg

 

Not horrible for what it is. There is some ringing at 6kHz reinforced by another node an octave higher. A peak at 9.5kHz, but in comes down relatively smoothly.

 

Compared to M-80:

f8031a4f_m80Lsolidplate.txt.jpeg a9ee2c1e_m80Rsolidplate.txt[1].jpeg

 

The HD-25 does have a U-curve. This was obvious during listening. I found the M-80 a better listen despite the midrange bump. (I would rather have a midrange bump with a treble roll-off than an U-curved FR.) Honestly I couldn't say the HD-25 sounded faster. Maybe a little clearer. I just couldn't get over its tonal signature.


Edited by purrin - 10/1/11 at 4:52pm
post #281 of 937
Thread Starter 

Holy crap. When did I get over 1000 posts?

post #282 of 937
Quote:
Originally Posted by purrin View Post

Holy crap. When did I get over 1000 posts?



91 posts ago...

post #283 of 937
Thread Starter 

I feel like such a n00b now that I've hit 1000 posts.

post #284 of 937
Thread Starter 

OK....check this out. My first post on Head-Fi a little bit more than three years ago: http://www.head-fi.org/t/360655/grado-sr-80-and-rs-2-impressions-comparisons

 

A portent of things to come I guess...

post #285 of 937
Quote:
Originally Posted by purrin View Post

OK....check this out. My first post on Head-Fi a little bit more than three years ago: http://www.head-fi.org/t/360655/grado-sr-80-and-rs-2-impressions-comparisons

 

A portent of things to come I guess...



It's much better than my first post....

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