Off topic...but since several class d amps have been mentioned I thought I'd through this out there
I am a huge fan of class d amps. Properly executed ones. I have found them to be very neutral, extremely musical, not sterile and overall
just plain fun and engaging. Explosive dynamics, seemingly endless power and bar none the best woofer control I've ever heard. Very tight bass....nothing any of my tube amps (push pull, single ended, still own my Decware SET) or any of my SS amps could ever do.
Most class d amps have great dampening factors. Starts and stops a woofer on a dime.
Micro dynamics are superb. Macro dynamics (again, the feeling of endless power) is spectacular. Are they perfect? No. Do they work with all types of speakers? No. Horns don't seem to like them from what I've read on several websites. There may be the tiniest ( And i mean super tiny amount) of hiss from certain tweeters. They do far more right than wrong. I least the ones I've heard. So don't rule them out yet. They are getting better and better. You must allow yourself a paradigm shift and keep an open mind. I have no secrets...you don't have to agree..but my goto amp right now is the Crown XLS2500. Superbly musical and engaging. I've owned some pretty good tube amps over the years as well as SS amps. I've borrowed and traded for many years with other friends and havnt had one itch to trade my Crown amp. Smooth mids and highs, tight and deep bass. It's far better than any old school audiophile would think. Just my opinion gained from direct use and comparisons. YMMV. Your system's synergy may not like it. Don't whole heartedly discount them entirely. My Crown at a few hundred bucks has performed well beyond my expectations. Good luck with your project.