How much air space does my dhd 6812 subwoofers need and does the box need to be ported

SOURCE: 2 DHD NTX-6812 car subwoofers

First you'll need to buy a good quality amp wiring kit. For the torture your battery receives, get a power cap. The higher the farad the better off. And as for sound quality use really good RCA's and speaker wire. Try to keep the amp as close to subs as possible, and speaker wire a the necessary length. Not to long. Be sure to have a good ground.

SOURCE: building a box, need to know best dimensions for box and port

Hello dirt_digger6,

The specific sub you are asking about would seem to be the TS-302F which is the only 12" 800W Pioneer I have located.

Directly from Pioneer's support knowledgebase:
TS-W302F = Ported: 2.5 Cu.Ft. F3 = 39HzPort: 4  x 6.5 tuned @ 37 Hz with 12 % port noise.

An enclosure 16X18X21, constructed from 3/4" MDF will yield 2.69 Cu.Ft., allowing .19 Cu.Ft. displacement for the sub and port.
There's an excellent "box calculator" located here on the12v.com web site. You can measure the space you have to put the box and fiddle with the dimensions to get close to your ideal volume. There are also calculators on the12v.com which will allow you to calculate a port length based on port diameter (or width/height), enclosure volume, and desired tuning frequency.

Hope this helps.

SOURCE: need correct air space with port displacement for high and low tones also for spl

check out www.the12volt.com they have a lot of information on car audio installs and some of the sub woofer box designs are insane dont forget to rate

SOURCE: how much air space

Air space needed around the sub is a minimum of 1 inch, but 3-7 is preferred. If you get too big you can get an echo sound. Sealed is my preferred box - it generally gives you the deep base thumping you are probably looking for.
Hope this helps! Rate my solution!

SOURCE: I have a 15 inch legacy sharp steel 4000w

about 1.5 cubic feet for a sealed box and it does matter if its ported.. if you port it you need to find the right size port hole and length to suit the box and suit it to the most common music type you listen to..