mlpdmark

Hi I just have joimed this site but have been into audio, guess you could say my drug of choice, since 8th grade continualing seeking improvement in my system. I am now 54. Please forgive me if I have misunderstood your question as I am only sharing what i have learned the long way over the years. This IMO. That being said, what I have wound up with is a biamped system using using 2 QS silver series 90 mono tube amps for the mid-treb and 2 crown ps200 briged mono for the bass to drive my mg3a maggies. Other than the advantage of 4 seperate amps the real improvement and I don't mean subtle is at what point you Xover the signal. In comes biwiring. I strongly recommend, and I have tried it the most common way also, is to crossover after the preamp and before the amplifiers then biwiring the spk ( 2 pair wires, one for mid treb and one for low). I am assuming you are using 2 amps. If you aren't bi-amping with an external xover The only reason I know of to biwire is to use an out board Xover (1 pair in and two pair out with the with the frequencys split, a low pass filt.) supplied with the spks or an aftermarket one of better quality. This is why Vanderstine instists on biwiring, the xover in the cabinet is not complete and there goes sound quality. Simply put, I belive you'd be operating with a incomplete xover. The advantage of xovering after the preamp and before the amp (not possible with integrateds far as i know) is you do not waste any of the amplified signal. Your amps see and only amplifys the xovered preamp signal which gives great improvement in head room clarity, s stage etc.and applies it to the matchig drivers. You are not taking an amplifed signal and filtering the signal thus wasting amplified engery from your amp and trying to compensate with increased volume. I do this with a Bryston 10b xternal xover and the improvement was way worth the investment. My understanding of biwiring a speaker was for the ability to use 2 amps and or a xternal xover..... and sounds like you are missing the xternal low pass xover supplied with the spks? Hope I was of some help. I just spoke with a bud that happened to call and told him what I was doing and he educated me that often times when speakers are factory able to be biwired there is a jumper or wire or change needed to be done to the existing xover to enjoy the sonic beneffits