Can any multi-channel amp be bridged?

With some you can, with some you can't and with some you shouldn't.

You should consult each manufacturer and/or owner's manual individually. For instance, the 2 channel ATI AT1502 and six channel AT1506 could be bridged into 1 and 3 channels respectively, but the 5 channel AT1505 couldn't be.

Then there is the issue whether you should do so even if you can, because bridging will most likely half the impedance of the amp and that could put extra strain on it.

A few years ago I bridged an NAD 214 and it greatly shortened the life of it. The service tech told me even though this was allowable mechanically, by design it greatly increased the stress on the amp.

I'm sure there are many amps out there that can run in bridged mode easily because they are designed for handling very low impedances.

Hopefully, A'Gon members more enlightened them me will answer your call. Good luck!

Krell TAS can be bridged. Look on their website for how many configurations, but I know it can be bridged from 5x200 to 2x800.

You would be better off bi-amping then bridging. Just make sure that your speakers don't have a common connection in the crossover network. Just because you remove the "jumpers" that connect the tweeters and woofers on the outside of the box doesn't necessarily mean that they aren't still connected inside the box via the crossover circuitry. Some bi-wiring terminals are there strictly for looks. Sean
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