Not all amps can be "bridged" and it does not always have desirable results even if it can be done.
converting stereo power amps to mono
I will shortly have one superfluous Sonance 260 from one system and no amp for my Chapmans in a separate systwm. Am I better off dropping the Sonance and looking for a $3-500 dollar power amp or picking up another 260 and figuring out how to convert them to mono power sources?