QueueCumber
100+ Head-Fier
You're not going to find a small size, high current tube amp to drive that amp with. The smallest transformer coupled tube amp I know of (that doesn't use an external power supply brick) is the WA6. You're going to have to go with a hybrid like the Vali2. Anything more powerful and you'll get an amp with the same footprint area albeit in a different orientation and not as tall, like the Schiit Lr2; current Lyr 3 version isn't as low profile because of how the tube is mounted on the new version.
Thanks.
Have to say, A/Bing between the Susvara and the Utopia on the PrimaLuna DiaLogue Premium HP has spoiled the Utopia for me. It seems like the clarity on the Utopia is mostly a bump in the higher area of the frequency range. While it adds a certain clarity sometimes, it seems to muddle the finer details of individual instruments in busier passages of music and compress the soundstage. Meanwhile on the Susvara, those individual instrument are separated a lot more and easy to pick out. Comparing One Flight Down (Norah Jones) between the two you can really hear and follow all the instruments in the busier passages on the Susvara, while it becomes a hodgepodge on the Utopia in comparison. Just wish the Susvara were easier to drive so I didn’t have to be tethered to one spot in the townhouse when I listen to them...