[TomV]

I need some help choosing a my subwoofer / amplifier orientation in my hatchback foxbody Mustang. I have a single JL Audio 10w6v3 and (3) PPI amplifiers. I want to build a new box, rather than use the JL enclosure. Ideally I'd like to keep the entire setup as low as possible, so that I might keep the retractable privacy shade. I'd also like to see all three amplifiers in a row, whether in front or on top.

I set some of equipment in the hatch to try and get a feel for placement. The third un-pictured amp is a little narrower.

To get my ideals I'd have to up-fire the sub to the rear hatch glass. I don't think this will provide the best sound.

To get the best sound I'd have to fire the sub rearward, but the amplifiers would sit on-top of the box and be highly visible through the rear glass. I doubt I could use the privacy shade and would need to fabricate a cover. Hatch will also get 20% tint.

Any suggestions would be appreciated and will help me decide on my box design.

 

[TomV]

FYI: this same car once had (2) old school 10" Kicker subs in a sealed / angled box facing rearward, back in 1993-1996 time frame with I believe was 300W for the pair and it hit pretty hard from what I remember. I'm hoping (1) 10" modern sub with 400W will produce similar bass response.

 

[TomV]

Spare tire is gone, I was planning on making a storage space under the floor in the well. The actual box part won't span hatch, but panels will look like its 42" wide. Next to the box will be compartments for wiring, fuses, second battery, etc.

 

[TomV]

Thx everyone! I was planning on a sealed enclosure, however a top-firing rear-ported box sounds interesting. I'll need to do some research.

The hatch cargo space dimensions I have written down are as follows:
45" between the cage.
36" width behind the seats
30" from seats to rear of hatch
11.5" under the shade
13" back seat height
14" exposed under hatch glass

I had started a build thread at the end of 2020 that has some more pictures and it's current state as of last fall.
TomV 1989 Mustang GT Stereo Build Plan