I was thinking15's too. If i go tens or twelve's, it's gonna have to stay inside. I think my last question would be, the sa15d4 requires a 3.5 cu. ported box and 1800 woofers carries some ported 4.5 cu. boxes. Should i just build a box? The price on two boxes came out to a little under 400.
Second question is, will my hifonics 2100 push these two subs at 1 ohm for a few months?