Without question Ayon Spirit , it uses the best transformers and chokes you will find at this pric3 and above Lundahl which is world class , and the only microprocessor controlled biased amplifier
it biases each tube individually not just auto bias which just takes an average. The only shuts down if a tube goes bad and tells you which output tube it is .
it biases each tube individually not just auto bias which just takes an average. The only shuts down if a tube goes bad and tells you which output tube it is .