Re; Dynamics, Class D vs tubes…

@daytrader if you have dog in the house, class D will hurt your pet!  I used class D amps for big PA systems, to entertain 80000+ people! Looking at your setup, I would recommend to consider class A SS, or tube amps if max power limitation is not concern. 

IME tubes are more engaging (more punch, detail, fuller sounding) at low volumes. 

The Class D amps I've tried have been far more dynamic than my tube and Class A amps. But not more engaging, musical, sonorous, inviting, mellow, inviting, or lubricious.

   It depends however the Class D Audio GaN Class D amp I am using currently is clearly the most dynamic in all regards of any amp I have owned.  Also zero fatigue to boot.

I like class d ncore hypex mcintosh using it in mi1502.marantz,atmosphere, Roland and other major manufactures using it.crutchfield let's you try stuff for 90 days they have some class d.it takes a very expensive tube amp to equal d sonic 2200 watts pascal. He may have a trial period. Fosi sell 48 volt gan per supply 80$ amazon or fosi audio direct.then thier mono amp 120$ . 250 watts into 4 ohms.low distortion amps. You don't need to change tubes.my favorite vtl 7.5 tube pre with ss amps.alot agree with this hybrid combo.enjoy the search.