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SR-71A and PA2V2 - Am I deaf

post #1 of 35
Thread Starter 

I am testing my new SR-71A amp side-by-side with my old PA2V2 amp using the same source and Sennheiser HD-580 headphones.  I am really surprised to hear virtually no difference between the two amps.  Am I deaf?

post #2 of 35

Nope. Most amps do and should sound pretty much the same - unless they are doing something wrong.

post #3 of 35
Thread Starter 

then why did I pay almost $400 more for a headphone that does basically the same thing?

post #4 of 35

I am one of those who likes many of the amps that Ray has made and sold. Unfortunately the SR71A is not one of them, however the original SR71, The Hornet, the P51 are among the best sounding portables I have listened to.

post #5 of 35
Thread Starter 

Ray told me that the only amp that will properly drive my HD580s is the SR-71A.

post #6 of 35

This website spews many a fallacies. If I were to get a Senn. 650 HD would it sound any different then my Grado Sr125i's?

post #7 of 35
 


Quote

Originally Posted by Melvins View Post

This website spews many a fallacies. If I were to get a Senn. 650 HD would it sound any different then my Grado Sr125i's?



Very much different.

 

And try to drive the HD650 with a PA2v2 and then try the SR-71A. The PA2v2 will fail to properly drive them where the SR-71A will deliver plenty of power...as far as portable amps go. I have owned Grado 325i, HD 650, PA2v2 & SR-71A.

 

2- AA batteries cannot compete with 2- 9 volt.

post #8 of 35

You need a good source and source material to hear the best of any amp.

post #9 of 35

I was thinking the 650 would be my next headphone purchase. How much do they usually run for?

post #10 of 35
Thread Starter 

The SR-71A outperforms the PA2V2 only at extreme high volumes (past 9:00) - and since I dont plan on listening at those dangerous levels, I consider there to be virtually no difference.

post #11 of 35

whats 9:00?

post #12 of 35
Thread Starter 

...actually meant to say 3:00...the same position as on a clock.

post #13 of 35
Thread Starter 
Quote:
Originally Posted by jamato8 View Post

You need a good source and source material to hear the best of any amp.



I am using the line-out on my HiMD Sony Mindisc player which is playing lossless vinyl recordings.  You cant get much better than that with a portable device.

post #14 of 35
Quote:
Originally Posted by alrose312 View Post



Quote:
Originally Posted by jamato8 View Post

You need a good source and source material to hear the best of any amp.



I am using the line-out on my HiMD Sony Mindisc player which is playing lossless vinyl recordings.  You cant get much better than that with a portable device.

Vinyl, what's vinyl? lol. Yeah, I like vinyl. Well don't know what to say except that I can hear difference between a number of amps but this is a very individual sport. :^)

post #15 of 35
Quote:
Originally Posted by alrose312 View Post

The SR-71A outperforms the PA2V2 only at extreme high volumes (past 9:00) - and since I dont plan on listening at those dangerous levels, I consider there to be virtually no difference.



so in other words, headphones that are very hard to drive will actually see a noticeable difference

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