Hi,
In addition to hi-fi, I play bass guitar and am into separates, preamps, power amps.
I'm looking at some tube power amps for my bass guitar. There are a few tube power amps out there, Mesa Boogie Strategy 400 Stereo, Peavey Classic 120/120, a couple more. These are typically push/pull designs with either 6L6 or 6550 power tubes. Only the Peavey has a built in feature to bridge for mono output, so I know tube amps can be bridged.
So if I have a two channel power amp, 100 watts a channel, and I want to get one mono output of 200 watts going to one speaker, is that parallel bridging? How difficult or expensive would it be to design bridge circuitry for one of the others that is only available as two channel output? Is this Frankenstein stuff, or too expensive to even consider.
Is it as simple as paralleling the inputs and outputs together as was once recommended for the Dynaco ST70?