Conrad Johnson MF2550SE amp, paired with a Conrad Johnson ET3SE preamp. Spearit sound is going out of business in the next week or so and they still have a MF2550SE for under $5,000. It lists for $8,000 or so, so the deal is already built in (depreciation). It has upgraded capacitors and resistors and sounds great. I would buy that one, but I already own one. And, there's no maintenance on the amp. Truly plug and play. Pairing with a Conrad Johnson single tube preamp (either the ET3SE or the now discontinued ET5 ) creates great sound, beautiful soundstage and works for classical, rock, rap and acoustic. You would need to invest $200 beyond the cost of the preamp for a better tube, but it's really a nice combination.
For those who care, these units are made right here in the USA in Virginia. The owner is usually in the store/factory and he's a delight to chat with.
These units are bulletproof, sound great, well priced and made here. Not too many companies like that out there. I like to support the ones that are.
As always, trust your ears.