Class D vs Class A

Protestantism vs Catholicism. I predict Class D will nail 95 These to the wall and Class A will react with a vicious inquisition.

+1 Jult52 sums it up pretty well. Call me an old-fashioned Catholic. ;)

Sorry George99sa, only you can determine if you will miss the power or not. We don't know how large your room is, how loud you like to listen, etc.
My speakers are about the same measurements as yours, my amp is 100 wpc Class A and there is plenty of gain for my listening levels in my 24 X 15 X 8.5 listening room. In fact, I have been considering trying a 30 wpc 300B tube amp. I believe 30 wpc will be plenty for me.

Remember, power is on a logrithmic scale, so a 500 wpc amp would only play 10 dB louder than a 50 wpc amp.

George,
That's a very interesting comparison of two different topologies.For my
taste, I'd go with the Valvet(simple and straight forward class A circuit with
good part quality) but have no idea what your taste or priorities
are.What is the speaker's sensitivity and efficiency,type of music and how
loud do you listen?Let us know your findings.