primaluna gear, avalon eidolon speakers, cardas

The primaluna gear is outclassed by your speakers and cables.

Consider a preamp with some voltage regulation, and a power amp with some gain stage regulation. Regulation is conducive to warmth and sound stage stability.

The Chinese "classic" designs won't cut it with Avalon speakers due to the need for high current stability (they are not efficient)

-Avalon owner for the past 18 years

Still using Cardas, per my Eidolon and Eidolon Diamond.
I don't believe in wires at all....well that's an overstatement, I play with wires in moderation.
Start with a baseline of Canare Starquad cheapies,
if the system doesn't sound good and you absolutely need esoteric wires with voodoo boxes of choke and caps or alien material to compensate, something's wrong.

GLai there is indeed something special about the 0.8.
Tried them when I had my old pair of Eidolons.
Too bad I cant afford it, improvement doesnt justify the cost.
Rather spend time tweaking the operating points of my electronics.
Finally tamed my Avalon diamonds after a whole year.
Extremely sensitive to the slightest hint of odd order harmonics of upstream gear, that's all I can say.