I'm considering either the Xtant 6.1 (600w mono) or the Diamond Audio D61000.1 (500w @ 2ohm) to run a 4 ohm DVC SR 10" sub. I'm considering the Xtant for the SQ and a tad more power but it's also gonna cost me about $100-140 more. Is it worth it??? What do you guys think? I want great SQ but the potential for some output. OEM deck BTW, nothing aftermarket.