I have no dispute with those who recommend Primaluna as a good amplifier option. I do believe that n
query makes a strong point regarding the Line Magnetic (LM) 508a or 805a options. This is a pure class A SET using DHT 300b tube to drive the 805 DHT output tubes. This amplifier is in a different tier of performance/sound quality IMHO.
The USA distributor is the highly regarded Tone Audio Imports. LM is a very viable choice to give some consideration to.
Charles