Class A or AB amp for JBL S4700 speakers

Bo, I look forward to your impressions of your new Pass Labs amp, which model is it again?, may take you a while to come to conclusion's on the amp, burn-in would be likly be a fault, how long does The pass amps take to be broken-in?

I bought a X350.5, it is a few years old. Within a week it is ok. No long burn in period. :)

Bo, Is that class A or A/B?

It is 2 times 4o Watt class A. This means you almost never will come to class B. Even with my X250.5, it only happens when I play at extreme levels. This has a lot more in class A.

I owned the XA 100.5/60.5 and 30.5 as well. The X series has a little more air in the high freq.

The X350.5 has more drive and control as well even at very low volume. I use Purist Audio Limited Edition powercables. They make the mid freq so much more musical than no other powercable can. I will receive it today :)

In other words, it is class AB.

Class A amplifiers are class A right to full output.