My Mirage BPS-400 subwoofer shuts off during quiet passages of movies and sometimes won't come back on! Its annoying. I have my subwoofer plugged into a wall outlet that I control with a switch and so I don't even need the auto-off feature. If I brought my subwoofer to Mirage [ conveniently located very close to me ] do you think Mirage could disable this annoying auto-off "feature"?? I will check with them. Anybody else have this problem?