looking for some advice! i cant listen to a cd, a sacd, a dvd or any other format, without getting loud pops , i tried onkyo and the technical support at the place i bought my diy sub. its a nht1259 driver with a kiega 300 watt amp, they were nice enough to replace the driver twice and test the amp twice and found nothing wrong with the amp (i put a total of about 30 seconds on the two drivers) my 805 sub setting is set at 0db, my sub volume is at 1/4 (i dont dare go half way ) does any one have a clue where i should look? test? i appreciate any effort.