@brrgrr The L-590 AX II has plenty of headroom beyond the sweet 30WPC of Class A power. Not sure why Luxman doesn't publicize this as they go up to 180 watts +/- in A/B. I had owned the L-590 AX and due to my mental disorder called "Audiophilia Nervosa", I embarked on an 8 integrated amplifier quest with included Plinius, Accuphase, Esoteric, Gato, Gryphon and back to Luxman. The story is a bit more complicated but suffice it to say that the L-590 AX is the integrated I regret selling the most. The L-590 AX II is even better.
I auditioned the Persona 9H and the Blade 2 in the same room with the same gear. I was not impressed with the 9H and the Blade 2 sounded much better (to me). It was really as toss-up as to whether to go back to the 590 or try the new 509. You really can't go wrong with either one.
As for the Esoteric, I owned the F-05 Integrated - I was not impressed. Not in the same league as Luxman.