built-in Xover during active bi-amping.

How's the poetry coming.

Depends a little on what you are doing but the typical bi-amp will only eliminate the bass to mid-high network in the speaker. Generally you retain the passive crossover for the higher frequencies and you by-pass/remove the passive low pass filter. The crossover frequency for the electronic XO should be close to the original.

Not good to leave in as your not really bi-amping if the passive XOs stay in the circuit.

Sincerely, I remain

Hi Mar:
I agree with Rich that you have to know what's going on but you do NOT have to be a mod superstar ala D'Agostino or
something to bi-amp your system. Like Rich, typically your low pass passive filter remains.

I'm not certain what system Greg is referring to and I am not familiar with the Bryston unit he talks of but, in any event, I do not see how you can "get away not removing the crossover" for the mid to high frequencies. Getting the passive filters out of the way at that point (between amp and speakers) is the main advantage of bi-amping. Whatever system you have you cannot keep the entire passive XO system in (and working) and get the advantages of bi-amping. There is a good general discussion of bi-amping at Rod Eliot's web site. I suggest you read that Mar. It is a great improvement when done properly.

Rod Eliot's article on bi-amping is @ www.sound.westhost.com/bi-amp.htm

Maybe Sean or some biamp guru will pipe in.

Sincerely, I remain