2. amps-preamps
  3. 147072-102231

Pass Labs AMP’s- What is the best Pass Amp Sound for You from past 10 years

So I have an XA-25 and its outstanding. I’ve tested the XA60.8 mono’s and there was not enough difference to move to them; no jaw dropping moments. Don’t get me wrong they were fantastic, but so is the XA25. Looking at the 350.8 or 250.8, etc.... even in comparison the Integrated INT-250... If you love it; want to explain what you like and why? I’m wondering what others are thinking... 
My set up: Wilson Sophia II’s, XA-25, Pass Labs XP-22 pre, Merging+NADAC. 
jahatl513

Showing 3 responses by unsound

unsound
7,343 posts
 
@karmapolice, your point has much merit, but meters on gear such as this are almost never calibrated measuring devices, more often than not just glitzy toys serving as eye candy. Such meters rather than giving insight more often than not mislead.
unsound
7,343 posts
 
@georgehifi, You probably know better than I. I'm just reporting what Threshold claimed. It's interesting that Threshold's SA1's which were rated by Threshold as 160 Watts of Class A power were mono-block's of the same platform as the stereo S 500.
unsound
7,343 posts
 

@georgehifi , I believe the Threshold S 500's were rated to about 20%  Class A;  or 50 Watts. With impedance drops; as the power output doubled, the Class A output halved.

There are 20 output devices per channel for a total of 40. Though, I think something like 4 devices per side were used for the then trick Stasis circuitry.

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