On Friday the 22nd, I'll be test link buying 3 more XS104 subs. I'm a LANZAR guy for most things OS, but these subs are my favorite among all subs. From their sound, to their output to their looks. 4 of them off of a LANZAR Opti500 in a sealed box. I might even try an isobaric box. My goal is SQ ov...