they'll do ok in 3.5 sealed. i just finished one last night for 2 L7 15's. 10.6 cubes 34hz. we installed it last night with 16 guage speaker wire:crap: he's getting 10 guage today. if it does as well as i think it will, he'll probably sh!t himself. i did a box for 2 L5 10's in his car, and he claims it's too loud for his car. 2 L7 15's in his yukon should be louder:crazy:Personally I was going more for sound quality than pure air movement. So on the kicker reps advice I went with 3.5 sealed per 15. But if you want SPL then I have seen many ported l7's that are moving a shitload of air.
Should move some air, but won't get very loud.they'll do ok in 3.5 sealed. i just finished one last night for 2 L7 15's. 10.6 cubes 34hz. we installed it last night with 16 guage speaker wire:crap: he's getting 10 guage today. if it does as well as i think it will, he'll probably sh!t himself. i did a box for 2 L5 10's in his car, and he claims it's too loud for his car. 2 L7 15's in his yukon should be louder:crazy:
ur l7 is guna be pissed in a sealed box