[QUOTE=TurboTrav;420235]pass through on a 97-03? or 04+
my box is built to spec and yes i love them great response.
did 138.6 on the center of the dash on music over a 3 min time UNDER power getting 1800 to them max they will take 2k if its clean[/QUOTE

Its for a 97 GP. It was designed for the subs and the cabin or loading environment. I also have a Fourth order design for those subs but its a forward facing box with the ports on the outer edges not in the center like the sixth order bandpass. Both boxes are designed to get maximum excursion on 1200 to 1400 watts and are tuned to 35Hz. That is what DJ from audioque told me to tune them at for the best response. He also said they should handle a AQ2200d in short burst but the guy that designed these enclosures said no way. They would exceed the sub suspensions limits and either bottom out or get some magic smoke rolling.