To be installed in custom sealed enclosure over the battery box. Driven by Zapco 750.2 bridged mono ([email protected]). Definitely SQ over SPL, vocals, rock, etc. No trance, rap. Do I need a 12" to punch through the well-sealed trunk, or can I get away with a 10"? Speakers in main cabin planned to be DA S600s x2 driven by Zapco 1000.4 ([email protected]). Thanks. R.