I have been wondering about getting a crossover for my speakers and subwoofer for a while now. I am not thrilled with the 100 hz of my receiver, and quite frankly, I can't even use the 100 hz crossover in SOURCE DIRECT MODE, which is the best way to listen to music. So another words, listening to music in the best SOURCE DIRECT MODE has thus far meant NO SUBWOOFER. My subwoofer does not have a high-level speaker wire high-pass crossover for my main speakers, but it has a crossover for itself, the subwoofer, of 50-100 hz. Ostacles: 1) I cannot run the speaker wire into the subwoofer because my subwoofer has no speaker wire input or crossover for the front speakers. 2) I have no PRE-OUT - MAIN IN LOOP on my receiver and I am not using outboard amplification, so I cannot use an active crossover for my main front speakers at all. Instead of trying to find a "good" crossover to run the speaker wires through and use as a highpass AND lowpass crossover...why don't I do this? 1) Fronts LARGE or SOURCE DIRECT (same thing) 2) Avoid overlap by running front speakers through a high pass crossover. 3) Connect subwoofer to front LEFT and RIGHT pre-out of receiver and use subwoofers low pass crossover to suit. So far I've been doing the above without the high pass, just setting my subwoofer to 50 hz, but because my fronts go to 32 hz - 3dB there's likely a big overlap from say 28 hz to upwards of 60 hz? Sounds ok "sometimes". All I'd have to buy is a high pass crossover, rather than both a high pass AND a low pass. Yes, I understand that the high pass crossover isn't quite the match of a good active crossover, but subwoofers have been supplied with these for years anyways and the results haven't been horrible. Surely speakers themselves have passive crossovers. I know there are phase shift issues, but isn't it worth a try? Any advice on the most cost effective HIGH PASS only speaker wire level crossover? I'd be willing to try a variable crossover, although I'm aware that a fixed one is better, as long as I can change it from one freqeuncy to another at least by simply swapping resistors. Say a fixed HIGH PASS of 50, 60, 70, 80 or even 90 hz? Any ideas?