Re: what's wrong with my setup?
My bad, I must of skipped over that part in the first post. Well an air leak could cause the bottoming out, if thats what it really is, but it wouldn't explain the sub smoking. The only way it's going to smoke is if you overpower it, which means either the gain was not actually set correctly using the DD-1, or the coil being used can't actually take the power being provided by the amp (which I doubt, SPLaudio seems to offer quality parts from everyones reviews and experiences). I would try setting the gain the way described in the link I posted. See if that fixes the issue. Maybe the DD-1 isn't properly working anymore? Did you use it properly, such as the instructions in this link? Maybe you set the gain using a -3dB reference tone, and the media you are playing is actually +3dB and thus causing the amp to clip even though you set it correctly according to the DD-1.
Originally Posted by berretta96
2011 Honda Civic EX Coupe
Head Unit: Kenwood DDX419
Components: Image Dynamics CXS62 v.2 powered by an Audioque 200.2
Subwoofers: (2) Sundown SA 12" powered by a Audioque 1200D
"Don't know something because someone told you, know because you did the research, and you understand WHY something is true or false, otherwise you're just doing yourself a disservice."