The box is for 4 IA 187' 15"s. Max external dimensions are 41" wide by 25" high by 33" deep. Would like sub up and port up, port in the back behind the 4 subs tuned to 33hz. This will be for a ford explorer xlt, and power will be a AQ2200D. Send me a PM with and any improvements/alterations you think would be better, and a price for a detailed design and cutsheet. Thanks!