Hey Tom, You’ve got it right. It’s a 300B Push Pull cathode bias amplifier that can produce 25 watts per channel. This amp followed on the coat-tails of my Transcend and Special PP KT based amps. The question was- Since a SET amp can sound so good ( because there’s so little in the signal path), is that why PP sounds so dry and lifeless? So I decided to put the same care and attention to parts selection and simple signal paths in a Push Pull without pushing anything near cutoff where it sounds hard or strained, and the results were a very pure and effortless sounding Push Pull. I then became slightly obsessed and decided to see what that would do with a 300B push pull and that led to this creation- SET purity in its convincing yet more balls and grip in the bass due to more headroom and the efficiency of Push Pull. It took two chassis to get this right as the power supply uses exclusively film caps, no less than 6 power transformers and multiple chokes to provide all the "fuel" to do it right. I’m very very excited to hear Tom’s (and whomever else is present) impressions in a direct comparison to his beloved 8 watt per channel single-ended amplifier.
@david_ten - Congrats on entering the SET realm! It can definitely be a love affair, kind of like that voluptuous soft curvy girl we knew in our teenage years that just everything right, but wasn’t as tall or brassy as the cheerleader everyone drooled over. More of an lover than a mathematician if you will :-) If I can be on any help, I’d love to design and build you something nice.
@david_ten - Congrats on entering the SET realm! It can definitely be a love affair, kind of like that voluptuous soft curvy girl we knew in our teenage years that just everything right, but wasn’t as tall or brassy as the cheerleader everyone drooled over. More of an lover than a mathematician if you will :-) If I can be on any help, I’d love to design and build you something nice.