Is there a 300B type amp out there with some WATTS behind it?

VAC made stereo amps with multiple pairs of push-pull 300B's about twenty years ago. I remember seeing them advertised on the back covers of Stereophile.

Musical Fidelity Made something called the 550K Supercharger.

These are mono amps that go between your amp and your speakers.

They use the signal from your amp and multiply it X number of times to "Supercharge" the SOUND of your (300B) amp (theoretically).

@dweller that is an interesting approach. I would love to hear if anyone has used it and what they think.

I use a 300B (Woo) headphone amp for my headphone system. Then Audio Research tube amp (in triode mode) for my main system where lots of power is required. Once I heard the 300B of my headphone system… I upgraded every part of my main system to achieve a similar sound… natural, musical, detailed. My all Audio Research system does that.

I would have a listen to the Audio Research VT80. It has a beautiful warm tube sound and power.

As mentioned above, there are 805 / 845 / 211/ GM70 etc big transmitter tubes that are capable to go into the tens of watts range. These big transmitting tubes have remarkably neutral sound, and they mostly take on the character of the driver tube.

So, if you want 300B sound with more watts, go for an amp with the tubes above, that uses the 300B to drive the power tube. You will get the 300B sound but with a lot more driving power.

Still, as above mentioned, at this point you would fare better upgrading the speakers than changing the amps. No power output can replace dynamics that comes from speaker sensitivity.

However, going for more sensitive speakers means BIGGER speakers, so your choice is down to available space.

Cheers;

Janos