I have a 2001 grand prix gt 3.8 n/s. I also have a aftermarket sony xplod (gt500w head unit) a kenwood 9103d 1200 1- ohm stable amp and a 2009 kicker l7 solo baric 2- ohm dual voice coil amp. With all new boston speakers. The sub sits in its custom ported box but sounds like crap. its not blown but i have it hooked up running positive to positve and negative to negative i think this gives the 2-ohm sub a 1 ohm load im curisous becasue i hear some people tell me my amp is not a true 1 ohm amp is this why it sounds like ****.