@rooze has it ... the Allnic A-6000 are 60W a side with 4 x 300BXLS in parallel, and sound incredible, in the top 0.1% of all amps in any category. Best I have ever heard vs. very costly others. The soft start means the power tubes will last a decade.
@glennewdick these 300BXLS tubes are more like $750 each, yet not to worry, I have my amps on 10-12 hours a day usually 7 days a week for 3 years. And with only 30% loss in tube life and 0% loss in power or tone.
Sadly for your needs @mikedc no integrated will get there.