[jdandy]

Originally Posted by Rick U

That explains a lot. Do you have one of these in use? What frequency are you using to cross the speakers and the subs? I think I want to make sure 60 is my number before playing with the slopes? Is that a sound idea?

Rick.......I purchased a new Bryston 10 Sub active crossover from Ivan when I had the SF Guarneri Memento speakers in my studio system. I used it to take the low frequencies off the Mementos and route them to a pair of McIntosh XLS112 powered subwoofers. The Guarneri Memento's roll off quickly below 46Hz. Trying to drive them full range was mudding up the Memento's lower midrange from the mid-bass driver struggling to reproduce the lowest octave below its working range. I crossed over everything below 70Hz to the subs and routed everything above 70Hz to the Memento's. I used a 12dB slope on the low pass filter to allow the subs upper crossover point to ease into the range where the Memento's were crossed over. I set the high pass slope to 18dB to roll off the lowest frequencies steeply before the point at which the Memento's began seeing everything above 50Hz. It worked fabulously for the Guarneri Memento speakers and allowed them to blend perfectly with the two XLS112 subwoofers. With the Bryston 10B Sub active crossover in place my subs and Memento's were seamless and performed as full range speakers. It was a great combination.