Thanks rodman99999,
I do in fact have the LP-1 manual and have been calculating the necessary capacitor values required, depending on the input impedance of the main speaker amps I use. It apparently doesn't matter what the impedance is of the amp used for the sub(s). Anyway I have a pair of monobloc amps which have an input impedance of 22K ohms which produces a crossover point of 280Hz with the 0.027 mfd factory capacitor. This will allow me to use the stock LP-1 to replace my Maggie 20Rs stock passive crossover providing a high pass of 280HZ (6db slope) which is very close to Magnepans recommended 300Hz high pass point and to then dial in the low pass between the Magnepan recommended low point of 90Hz-150Hz range. Thanks for the info re Frank Van Alstine, I will certainly give him a call.
I do in fact have the LP-1 manual and have been calculating the necessary capacitor values required, depending on the input impedance of the main speaker amps I use. It apparently doesn't matter what the impedance is of the amp used for the sub(s). Anyway I have a pair of monobloc amps which have an input impedance of 22K ohms which produces a crossover point of 280Hz with the 0.027 mfd factory capacitor. This will allow me to use the stock LP-1 to replace my Maggie 20Rs stock passive crossover providing a high pass of 280HZ (6db slope) which is very close to Magnepans recommended 300Hz high pass point and to then dial in the low pass between the Magnepan recommended low point of 90Hz-150Hz range. Thanks for the info re Frank Van Alstine, I will certainly give him a call.