hey, well I had my system installed late last year and it was running fine (no issues what so ever). then last Tuesday im cruising home and it starts to "pop" so i deactivate the sub from the HU. I take it to the guys who installed it for me and they had a look at it, at first they said it sounded like a dropped voice coil but when they pulled it apart they said I fried it.
They arranged with alpine to replace it (usually theyre not replaced under warranty if they're "fried") but i told him i dont take it past a certain point on the volume control so i dont know wtf is wrong with it. they switched the sub over with a new one on saturday and tuned it all for me, driving home last nite and it starts to make that popping noise again so i deactivate the sub again.....