Posted by Arbelos (i) on March 22, 2001 at 19:27:20

In Reply to: Re: an active (or passive)crossover is: posted by Andre Linoge on March 22, 2001 at 15:08:30:

If you go to an active crossover, i'd obviously use the Audio X-stream crossover, which incorporates a tuneable notch filter for the B-Gs. I forgot about it. Better would be only a tube crossover IMO.

I think that the passive notch filter ahead of the speaker is probably a severe limit on sonic quality - i prefer to implement such filters with a parallel 'sink' circuit, not a blocking 'tank' circuit - if i have to.

It is probable that a text-book crossover will work quite well from the start on the B-Gs, because they have a rel. well behaved fundamental resonance at ca. 130 Hz, so the used crossover is about two octaves away, and the bass will be at least 2 octaves away from its upper limit. The used XO frequency sits nicely (and sensibly IMO) between both drivers lower resp. upper limit. A bit of tuning will probably still be necessary.

What preamp and amp do you want to use?