bottoming out like the coil hitting the back plate? at 45hz that's 45 times a second, so that's quite a bit of banging metal on metal if you asked me.is it really bad if a sub bottoms out for about 1 second. does it affect anything?
a little late but oh well my sub wasn't bottoming out it was the voice coil was hitting the dust cap pics below good thing thorshammer reconed mine =)