Swapping W4S to Pass Labs XA- worth it?

Just checked - output impedance of my CD player/preamp is 300 Ohm, so in theory 30K input results in 100 ratio, which should be OK, I hope. 
Wonder if anyone drove Triton One with XA30.5 (30.8)?

I've successfully used an XA30.5 with 85db speakers.

I'd have trouble thinking of any Pass and any W4S product even remotely in the same league.

Not sure where this 30kR input figure is coming from, but the 30.8 is 50kR in SE. 

Beyond that, I have a difficult time suggesting someone buy a class A amp and operating it in class AB a significant portion of the time. We're talking about an amp that's making 1% distortion at 30 watts. At 40 watts that number has probably doubled. And what are we calling clipping? Because I can promise you the output devices themselves are clipping at 40 watts. I have no doubt this amp will belt out way more than it's rated power, but that's not it's intended use. That's how the X series is intended to be used. I'm more concerned than I would normally be since the OP mentioned piping HT audio though this thing. I'm not saying don't buy it or try it. I'm just pointing out the things that I think should be considered. 

Tell us what the Pass would have to do that your current amp doesn't do that to you would make it worth the change?  I imagine they will sound slightly different, but without knowing you goals, or even the rest of your system, it's hard for anyone to say whether changing will be a good decision.

It really appears strange that you seem to want to run the Pass amp in A/B mode.

Stereophile measurements of 30.5 shows quite different numbers then 1% at 30 watts, in fact extremely different. I think 1% is at clipping when in AB. Here are those charts. https://www.stereophile.com/images/archivesart/509Pasfig4.jpg

I am not "planning to run it in AB mode", I just want to ake sure it does not clip in HT mode. I never listen to stereo at very loud volume.
As far a goal - I may be like more "liquid" presentation of some music, which in my case is small ensemble modern classical music, opera, small jazz ensembles and jazz vocals, and classic progressive rock.

For stereo listening I am planning directly feeding amp from AYON CD-5.