I want to add to the comments about Ralph and Atma-sphere.
First, my MA-1 amps are a daily joy. There is indeed something magic to the sound, especially when the rest of the system is tuned to the amps. And the system tuned to the room. I cannot say exactly what it is, but the MA-1s add a kind of inner light to the music, very addictive. I have v3.2. Maybe 3.3 would sound even better.
Second, customer support from Ralph and company has been not just good, but outstanding. I always get informative and helpful answers to my mails. On issues concerning the whole system, not just the amps. Even when we don’t agree on all details (e g I think I CAN hear difference between different balanced cables) his views are always interesting and well reasoned, and usually agree with my experience.
My system was built, partly with the help of Ralph, to include Audiokinesis speakers, Aesthetix Io phono stage, Lyra Atlas on a Hanss TT-30, and an Einstein The tube mk2 preamp. Most of it my own idea. The speaker suggestion was from Ralph, and I have not regretted a single day. The amp/speaker matching is maybe the most critical part, to get the most out of the Atma amps.
I am happy to report that all the high quality firms making the products in my system - Lyra, Aesthetix, Audiokinesis, Einstein etc - have offered good support over the years. Yet Ralph is my favorite. Going far beyond "call of duty" and offering advice even though it concerns other products with no profit for Atma-sphere. This is great customer service.