My EP500 is 2-3 months old. My EP500 sometimes makes a slight hissing sound when my system is off. This is not a hum but a noise that sounds like when you put your ear to a sea shell. It does not change when I move the volume control or switch the subsonic filter or phase switch. It goes away when I turn the crossover knob all the way down to 40 HZ and get progressively louder as crossover knob is turned up toward 150 HZ. This sound is not comming from my system as it remains when I pull off the sub cable. If I switch off the power and then turn it back on the sound goes away and the sub remains quiet until some time later.
Has anyone else experienced this and if so what was the resolution?
Last edited by rvrrat; 12/13/09 08:36 AM.
