Does bridging give you the monoblock sound??

Marty, mine would tell your better half not to bother, if the statement came from me. It is probably exactly that, what Marakanetz meant with the cancellation of out of phase signals. Your wife and mine would probably agree, that we're mostly out of phase anyway. The only thing, all four of us might agree upon is, that horizontal biamping is generally more comfortable, with generally the same pleasing results, as compared to vertical biamping. Cheers,

When biamping, the two amplifiers serve totally different types of drivers. Why then would the relatively subtle differences between two decent amplifiers be important, as some people say in favor of the vertical configuration?

As a serial biamper, let me say that I have configured systems for two reasons... (1)...To put the more powerful amplifier where power is needed...(2)....To put the better quality (low distortion) amplifier in the HI slot where distortion would be most noticable.

Each driver in your speaker system is optimized for a particular frequency range. Ideally the different amplifiers would also be optimized according to their application.

The vertical configuration presupposes that the amplifiers ane exactly identical as they are in the original posters case.