Are your speakers bi-wireable?
If so, you could go the vertical bi-amping route, without having to bridge (and lose power into lower ohms as Bob R. suggests).
Drive the tweeters or tweeter/mids with the 3B, and get another 3B or even better a 4B for the woofers.
If so, you could go the vertical bi-amping route, without having to bridge (and lose power into lower ohms as Bob R. suggests).
Drive the tweeters or tweeter/mids with the 3B, and get another 3B or even better a 4B for the woofers.