unbeatable Class A integrated

All the choice mentioned above are excellent. Luxman 590AXII gets my vote. Good luck. 

You can find the gryphon diablo 300 used for that price. Some other good amps listed, the soulution would be my other choice from those listed, but the others don’t offer 300 watts and the sound that gryphon does. 

You can find the gryphon diablo 300 used for that price.

Great amp the Gryphon, will drive anything and does give a taste of Class-A sound, but it’s an entree and not the main meal like 30w> Class-A could give.
When you hear something like the Gryphon Antillion Evo switched between it’s low 25w, medium 50w, and high 150w Class-A modes you know.

The Diablo 300 it’s said is around 10w of Class-A. And it has far more heatsinking than the Lux 590axII has.
And they run HOT!!
https://www.monoandstereo.com/2016/04/gryphon-diablo-300-integrated-amplifier.html say

Cheers George

The Gryphon Diablo 300 should be excellent at its asking price. What is the current retail price of the amp? The last time I checked it is around $16,000 to $17,000 for the basic model. The Luxman L-590AXII is around $9,000 only.

The Luxman L-590AXII represents great value for money. It is able to drive difficult loads with its conservative power ratings and in Class A adds a slight advantage over Class AB types. The only cons are the heat it produces and weight, although most quality amps in similar class are usually huge and heavy.