ok so currently i'm running a setup of 4 IDQ V3s sealed with 3kw, the subs are firing up and i dont like this much, vibrates alot more compare to 2 more powerful subs i've had firing forward, so now i want to go with 3 15s and firing them forward into the cabin, then sealed off the front side of the box. this is purely for an ""SQL"" install, some days i love to feel air moving, other days i love to just enjoy music for what it is, i wanted to do this design with the IDQs in a ported box, but i think it's just going to have too many issues, and the 3 15s should have more displacement over the 4 12s also. so here's my questions regarding the 15" FL will the FL take 1kw daily? my guess is yes. will the FL do fine in 3cuft ported @ 20hz, or will it want a bit more airspace? will IA make custom coil options? say dual 1.5ohm or dual 6ohm coils? I live in Australia so it's not as simple as just making a phone call here cheers.