So, you are very happy with what you have and it isn’t going anywhere. but you are looking for something for your secondary system that is inferior, but different than your primary system?
I was interested in both LTA and Octave for my Spatial M3 Sapphires. I demoed the Octave V40 se with the SBB. It was a stunning amp that gave a new perspective on my music collection. Dynamics, Clarity, Instrument tonality and separation. With the ability to tweak with NOS driver tubes I am in love with the Octave line. Since upgraded to the V70 Class A and that is my forever Amp. Good Luck in your search.
I read a great review, chose a Cayin A88T, 22/45 wpc, very glad I did
bigger brother is a100t 50/100 wpc, never heard one, but I imagine same sound as my A88T, however, A88T uses 6sl7 and 6sn7, the A100T uses 12's
VAS used to be the Cayin US rep
one a100t in usa
note: mk1 has internal bias, PITA, later models have exterior bias meter and adjusters. I needed mk1 for my 16 ohm speakers
I was gonna recommend Octave but you beat me to it. I’d go for the v70 SE if you can swing it as your Totems will likely appreciate the additional power. There’s one for sale now in you price range…
LTA seems like another great option for the sound characteristics you’re looking for, but their linear power supply is a must for better sound quality (at least for the MZ2) so factor that into the price. Hard to see you going wrong wither way.