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Can any multi-channel amp be bridged?

I have a 6 ch amp (100 wpc) - I want to do only stereo for
this application. Can I bridge it for 300 wpc in stereo, or
will I only be able to use two of the channels & let the other 4 be wasted? I haven't bought speakers yet, so I may
buy only bi-wired, but this does limit my choices, and probably ups the price, and will still only utilize 4 of the 6 channels. Any info would help!
fpawardsf343
arthursmuck
451 posts
 
Krell TAS can be bridged. Look on their website for how many configurations, but I know it can be bridged from 5x200 to 2x800.
Post removed 
sean
6,231 posts
 
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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audiobomber
11 posts
 
One of the main limitations of a power amp is its ability to deliver current. If you only use two channels of a six-channel amp, it will be able to supply a lot more current than if it were driving multiple channels.

Even where it's possible to bridge, bridging compromises current delivery and damping factor and therefore sound quality. Bi-amping or tri-amping is best, with one channel per woofer and one per tweeter/mid.
audiobomber
11 posts
 
PS. If your amp manufacturer intended bridged operation, there will be a bridging switch and directions on the amp. It's possible to build an external bridging circuit, but I wouldn't recommend it.
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