John,
Yes, an outboard amp in relation to the Kinergetics amp/crossover unit is just a normal amp, preferrably one with high current for good bass control. The description you give does not sound like clipping, the sound I hear when the speakers clip sounds more like a metallic popping sound. I wish I could help you out but I'm stumped. The crackle static sound seems more electronic to me. Don't forget your summing the output from the receiver so the left and right should be the same. Try lowering the sensitivity knobs to about the 12 o'clock position then raise slowly. I have never had the knobs much past the 2 o'clock position, too much bass and they distort easily.
Rich
Yes, an outboard amp in relation to the Kinergetics amp/crossover unit is just a normal amp, preferrably one with high current for good bass control. The description you give does not sound like clipping, the sound I hear when the speakers clip sounds more like a metallic popping sound. I wish I could help you out but I'm stumped. The crackle static sound seems more electronic to me. Don't forget your summing the output from the receiver so the left and right should be the same. Try lowering the sensitivity knobs to about the 12 o'clock position then raise slowly. I have never had the knobs much past the 2 o'clock position, too much bass and they distort easily.
Rich