Box size opinion. DD9918

[morphey86]

I need some advice here. Ive already built my box, so either way Im going to run it and see how she does, but I would like to know what everyone thinks here. I have a DD 9918 supercharged, running off a DD M4a @ 1 ohm, 5 batteries, 320 amp alt. It is a daily driver but wont be ran at full throttle except for demos to customers at the shop. Anyways, Ive built a box 8.5 cube tuned at 40hz. It is in a 03 GMC Yukon Denali. Any thoughts on how this will do? Still a week or two away from firing it up

[Cj Kumz]

What are your reasons for tuning to 40hz?? Box size seems ok so you can gain some efficiency though personally with that power I would recommend a smaller box to keep suspension under control. Maybe in the 6.5-7 cube range

[Guest]

I need some advice here. Ive already built my box, so either way Im going to run it and see how she does, but I would like to know what everyone thinks here. I have a DD 9918 supercharged, running off a DD M4a @ 1 ohm, 5 batteries, 320 amp alt. It is a daily driver but wont be ran at full throttle except for demos to customers at the shop. Anyways, Ive built a box 8.5 cube tuned at 40hz. It is in a 03 GMC Yukon Denali. Any thoughts on how this will do? Still a week or two away from firing it up

nice sub Id like to see one of those

can we see some pictures of your box?

thanks

[Bump4life]

his tuning will be fine. but it wont be able to play below 30 unless his car has some crazy loading love.

is the 8.5 cubes net air space or before displacements?

[firebirdude]

pics! I love the DD99