Yes- I get what the allure of the SET is all about. That inner detail they are known for comes out of the fact that as power levels are reduced, the distortion decreases to unmeasurable. When the distortion is gone, detail is revealed. There aren't many push-pull amps for which that is the case, but there are a few.
The problem is that you can't get much bigger than the 300b; people have built SETs with dual 300bs that aren't too bad but they are only 3dB more powerful (which is to say, twice the power); the problem is that the way the ear hears, 3dB just isn't that much louder. If you really want to play things louder you need at minimum 6dB more power, which is 4x more power than you have now. A 30 watt push pull amp that sounds nice isn't that hard to find, but an SET with that sort of power is challenging.
Its that, get more efficient speakers, or live with what you have....
The problem is that you can't get much bigger than the 300b; people have built SETs with dual 300bs that aren't too bad but they are only 3dB more powerful (which is to say, twice the power); the problem is that the way the ear hears, 3dB just isn't that much louder. If you really want to play things louder you need at minimum 6dB more power, which is 4x more power than you have now. A 30 watt push pull amp that sounds nice isn't that hard to find, but an SET with that sort of power is challenging.
Its that, get more efficient speakers, or live with what you have....