My Viva "Solistino" is an 18W class A integrated amp. I usually turn it on for 10-15 minutes for warm up, it does sound a little better after 30 mins. And the IA runs very hot.....can't imagine a system that takes 5-6 hours to warm up.
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Class D you say? How about Tube + Class D monos 600w @8ohms. Effective to drive your Sound Labs, with ease. Quick warmup, and ready for listening. https://www.psaudio.com/stellar-m1200-mono-amplifier/
PS audio Mono 1200s. Ultra-linear, high-current, ICE Edge Class D technology for the output stage; and a discrete, Class-A vacuum tube for the all-important input stage.
I think @ebm is right.
I use a X350.8 and I believe your X250.8 is warmer sounding. I don't think it will ever be the same as a tube power amp.
I like a warm and full midrange and don't think any solid state power amp will ever give me that close enough to say a Conrad Johnson. If my speakers didn't need the high current and I could live with the heat and cost of retubing, I would have gone for a Conrad Johnson.
I don't typically recommend dealers, in your situation it could be worthwhile to correspond. A local home audio dealer (Deetes) here in northern California USA has been in business since 1967, offers SoundLab speakers, sold Pass, more AudioNote and QuickSilver today. Primarily traditional TUBE amp systems only - that's his real passion, and specific electrostatic speakers. He's actually been selling SoundLab speakers as long as anyone around the world. I've known him for 42 years, seen and heard a lot of gear there new, used, trade-ins. A real treat to hear Soundlab there. Its a special place, last of its kind.
The first time I saw and heard my own mono block tube amplifiers they were playing with massive SoundLab speakers there. Deetes is a big fan of your SL 545s too. Email and by appointment only. In business 53+ years.
Deetes Sound Room
Deetes Andersen email@example.com
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