designs

I have a 03 Chevy suburban. It's going with 3 of the 12" american bass xfl in ported box. Pushed by a Soundstream ta3000.d1 at 1.33ohms. Box tuning i know i want to be at 32hz @ 0db but design is what i looking for help with? Subs back or up port up or back.The way it is now is subs up port...

Im 16 and putting together my first sound system in my car. I want to add this subwoofer but I cant design a box. So if anyone can help me out by giving me a cut sheet or something, I can get it built. Thank you The list: Vehicle : 2003 Saturn ion Location in the vehicle: Trunk Space...

Item(s) for Sale: Three DD 3512e's - L to R 3512e factory soft parts, D4, never seen above 1krms clean 3512e reconed once by me, never seen above 1krms clean 3512e factory fresh, bought it, never got to power it. reads D4 perfect. Looks brand new. Suspension is stiff. - I do not have the DD...

Here is the baddest sub I've owned as many of you know these things are beast no doubt. It is in great condition no rubs, scratches, or anything like that. Rated at 2000 RMS but will take alot more if the power is clean in the right box. 210 + shipping.

1. Product: 1 Used Digital Designs 9512 "F" Subwoofer with dual 0.5 ohm voice coils 2. Specs: Model - 9512f Series - 9500f Woofer Diameter - 12" Voice Coil Diameter - 3" Voice Coil Type - 4 layer DVC Magnet Weight - 320 oz Cone Type - Synthetic Fiber Blend Power Handling RMS - 1200...