I am very interested in impressions between upper tier amplifiers for Susvara. I currently have the ENLEUM 23R but looking for a tube amp to compliment and perhaps open up the sound stage more. I am not interested using it off the taps of a power speaker amps. My potential choices below:Curious, has anyone ever compared this little guy to the Riviera AIC-10? They are pretty similar function wise (high end tube amps that can do both HPs and speakers) but not sure how they compare in SQ...
Riviera A1C
Woo 23
Woo 33 Elite
Primavera,
Egoista 845
Envy Performance/ElrogMo
Hifiman EF1000
All of those with EF1000 and Riviera love it and think they are better than Envy. I was impressed with a short listen while in Poland recently but so difficult to choose another amp without some comparisons on similar setups. The Transformatic takes too long to get. Personally, I like a one box solution with a more compact form factor and aesthetics really nice with Envy but ultimately looking for the largest sound stage possible with Susvara and best overall performance in terms of layering and pinpoint instrument/vocals positioning without sacrificing micro details and bright treble with a silent black background.
With the Envy tube substitution using Elrogs-MO, it seems that it may be as good if not better than EF1000 according to some. Although not sure as many also feel the sound stage is much more holographic with EF1000, Transformatic or Rivera. There do not appear to be any real world head-to-head performance comparisons between these amplifiers, especially with the upgraded tubes on the Envy with the same downstream electronics with Susvara. Have DAVE with Upscaler. What was your impression of these amplifiers in more detail. How did you settle on the Envy? Thanks so much for your help.