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Thunderbird Club

Picked up a minty Acoustic 150b for my brother for Christmas (so I can get my Sunn 200s back that was on loan). And damnit, now I need to find another minty one, because it sounds fantastic! Really great sound from just the treble and bass controls, and especially with the bright switch flicked, really brings the crunch and attack.
There is solid state and then there is ACC solid state. I suspect that the magic is in the transformers and enormous capacitors. But I don't have a real way to know.
 
decoupling can be important in bass amplification….
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