The Pass XA-25 seems more in the realm of the First Watt stuff than any other Pass amp, and since the XA-25 sounds so damn good I've never been tempted by a First Watt amp. Maybe if my XA-25 explodes or something...However, I like the way old Nelson thinks, and it is unique that a namesake and designer of a major brand like Pass Labs designs quirky, great sounding other (First Watt) stuff, and even shares his designs with the DIY community.
Pass Labs 1st Watt Rundown
I have become intrigued with the 1st Watt series and I am trying to wrap my head around the series and the differences within the series, but the internet discussions seem shallow.
Can anyone give me a rundown of the different models, versions, whatever?
What are the differences from one to another?
Did the newer iterations correct problems of the previous models and what were they, or did they simply address differences in power?
Stereo? Monoblocks?
What pre's and the sensitivity of the speakers you used with them.
Anything else you can think of as to characteristics of the different models.
Thanks