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    2 subs vs 4 subs which is louder and enclosure style

    Originally I planned on having a pair of Orion HP 12s, with dual 4ohm coils, paralleled down to 1ohm in a ported box. My oldschool Orion HCCA250 would give them approx. 800W. Today I came across another pair of the same subs(identical specs) in a sealed box. So here are my questions???? 1...