bi amp imrpoving?

Hi Ngjockey, in reference to your response, one of the reasons I go with very similar amplifiers (having basically the same gain) is that I prefer not to have to introduce outboard attenuators into the system, in addition to wanting as uniform sound as possible with seamless transitions between drivers. (I also use the same power cords and interconnects all around in addition to identical speaker cables.) I don't know from personal experience if this is as critical with an active outboard crossover (I do know that some have found it to be so), but as far as I can see I'm probably gonna stay 'passive' and never try going that route, for some of the reasons (among others) mentioned by various posters above. Not that I doubt the benefits of active multi-amping if done properly -- in fact, I've always found it somewhat surprising that there haven't been more high-end manufacturers designing complete integrated crossover/amp/speaker systems where each driver gets its own dedicated amplifier.

Would the use of a single amplifier with megawatt output, used with medium-efficiency speakers, negate any possible additional benefit of biamping?

Psag: Does the megawatt amp allow you to take more control over the system and optimize to your preference?

"Would the use of a single amplifier with megawatt output, used with medium-efficiency speakers, negate any possible additional benefit of biamping?"

In almost every case, yes.

Ngjockey: As I understand it(?), the benefit of biamping is to lower distortion, by providing enough power to each driver, regardless of its impedance. I believe that the goal of a company like Spectron is to build an amp with enough power to do that, obviating the need for biamping.

However, I do wonder if active biamping brings some other benefit. Irvrobinson, what do you think?