Hey guys, I'm looking at a sub box designed for my 94 GMC Sierra, and I've found this general design on eBay

http://tinyurl.com/ybdagl8

# Single 12" 88-98 Chevy Extended Cab Sub Box

* Air Space: 0.90 Cubic Feet
* Mounting Depth: 6-1/2"
* Sealed Enclosure
* Dimensions: Width 23-3/4" x Front Height 10" x Rear Height 2" x Depth 13-1/4"

I was wondering what would be the largest sub I could safely put in there, considering its sealed, I have a budged of ~$400.00.

Thanks.

 

Most 12" subs are going to maximize that mounting depth and then provide little to no room for the vent on the back of the sub to allow air in. That cool air is what helps to keep the sub nice and cool, thus it should not be blocked. A 12" shallow mount sub might be your best bet as it will allow lots of air to be sucked into the inner workings of the sub and it does not occupy a crapload of air space either. Kenwood Excelon makes a great 12" shallow mount sub that is cheaper than what you are looking to spend. I can easily ship one up to you.

That box is going to be far more expensive by the time it arrives, especially with duty and brokerage fees (these are charged by UPS and not the seller and must be paid, typically after the parcel is in your hands and you have no control over the pricing of it).

 

X2 on the Kenwood shallow subs. IMO they are the best shallow mount subs out there. Although I think theya re also the deepest shallow mount subs

 

sorry to chime in here, but quick question.
As i mentioned in my earlier post, i'm just looking for a single 10" sub to give some low end to my stereo. i'm not looking for big booming loud thumping bass. I was originally considering just getting a shallow mount sub, as i want to try and keep as much of my trunk space as possible. The only problem is that i've been less than impressed by any shallow mounts subs i've heard. In fact some of them you actually have to walk up and touch them to make sure that they're on. (maybe it was just a bad/cheaper model) Would a shallow mount be a good option for placing in a trunk?
again sorry if this is a retarded noob question.

 

If you are after some bass response or have limited mounting depth, then a shallow mount is the ideal way to go. If you are after more than the average bear for bass response, then a normal sub in the proper box is the way to go.

The only shallow mount I like using on it's own is the Kenwood. The Pioneers are ok on their own but come alive when used in pairs.

 

I'd use a Soundsplinter rl-i 8" with .9 cubes. Can you use a square box? It's an extended cab right? An 8" in a .3 cube (SS reccommends) low tuned ported box on 300-500w would be enough for musical bottom octave fill. With .75" MDF 10.2 x 10.2 x 10.2 is .381 cubes, the rl-i displacement is .08, so it gets .301 cubes. A 2.2" aeroport (good luck finding 2.2) is 4.84 square port area, 16 sq.in per cube (16 x .3) is 4.8. That's a very small box, and I think those subs are $120, with 300w that would be decent. The DD 8" wants 1 cube and 500w, so if space is a concearn, .381 cubes + aeroport is smaller than .9, and that box is fugly.