Peter the WA22 using the tS power and Black glass drivers i dropped in there with a Princess 274B and it sounds excellent driving the lCD X and really nice with Danny Alpha Dog. I like the combo. i will miss it when it leaves. I could dropped t in the system upstairs but decided did not not want tho use another expensive amp in that system. I will be using review samples up there until i find something that really spikes my interest. The GSX may spike my interest enough too a sits on its way back for my review.
With the WA5, I think you'll do fine. I really enjoyed my time with the WA22 when I owned it!