I thought he was at least a halfway serious enthusiast in look of a great sub for his system. Lo and behold, get to the Blazer, and I see the amp. Bostwick MA-4100X
Total crap, and only rated to put out 100x4 at 2 ohms, something like 60x4 at 4 ohms, and overrated at that. THEN he says he paid $330 for the amplifier, in which I kept my mouth shut about how much he got raped on that deal. Bridge front and rear amp channels to get all 400 overrated watts to the sub. Sounded decent, though there was an apparent lack of power. I set the head unit flat, adjust the gains w/ a voltmeter, set the crossover, then do some listening. Sounds good until previously mentioned amplifier clipping comes into play. He's happy. Come back this week, he complains that the amp had been getting very hot, and he went to Custom Sound (where he bought it) and they told him not to bridge the amplifier, after all, the channels alone have plenty of power for THAT sub (in which they carry Bostwick, lower level Alpine, the MB Quart Discus series, and other random crap). This thing puts out MAYBE 60 watts per channel at 4 ohms. I told him he was severely underpowering the subwoofer, still trying not to tell him that the amplifier is a pile of shit. So I look and he has adjusted the gains full tilt, bass boost set at 18db, bass boost on the head unit is at maximum, treble at maximum, and dbb (or whatever other bass boost Sony Xplod head units use, something like that) set on. And he's wondering why the amp is hot 
I offer to sell him an older amp I have and he won't bite on it, which I gave him a very reasonable price. So now we have an excellent, highly underrated subwoofer in a very nice enclosure getting maybe 120W. Kind of pisses me off that he can't or won't do justice to a really nice subwoofer and box, and that I didn't check this out b/f I sold it. I really wish I'd have put it on this site and sold it to one of you guys, at least you'd respect it for what it is. I got the money for it, though.
