C1500martin 10+ year member
CarAudio.com Veteran
but if he wants to be "heard" from across a parking lot or whatever tune high. in the 40s high. im tuned to 35 and inside mmy car yea its low and "loud" to forum and competition standards but you cant hear my bass from more that 4 ft away from my car.sub up, go in from the inside not trunk. but your right. a single 12 or 2 tens are probably as good as he'll get.