Car Audio Car audio related questions and helpful hints for building the best sound system for your car or getting the most out of what you have.

Downfiring Sub Box

Old 02-15-2017, 07:52 AM
  #1  
Junior Member

Thread Starter
iTrader: (2)
 
TheJoeY88's Avatar
 
Join Date: Nov 2000
Location: Virginia Beach, VA
Posts: 99
Likes: 0
Received 0 Likes on 0 Posts
Transmission: 700R4
Axle/Gears: 2.73
Downfiring Sub Box

So i daily drive my 92 TA and would like a sub but don't want to take away functionality from the car too much.
I plan on running one of those newer tiny amps and hiding it either under a seat or in the spare tire well.
I wanted to be able to remove the sub box if i needed the room for luggage on a long trip.
I ran into some down firing sub boxes that should fit in the rear hatch well. They would be able to be put in there and still have usable space since you could put stuff on top of them.
It seems like our cars have about 11.5" of room in the well and Pioneer makes an 8" box that would fit very nicely, but there are two companies that make 10" boxes that should fit as well.
Has anyone ran something like these?





Old 03-31-2017, 04:04 AM
  #2  
Supreme Member

iTrader: (6)
 
The Project's Avatar
 
Join Date: Oct 2006
Location: West of Toronto
Posts: 3,041
Likes: 0
Received 6 Likes on 6 Posts
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: Downfiring Sub Box

There are a few guys on here who have put a single sub in the "bottom" of the rear hatch that still give room on top to put chairs and luggage.

Also, I've seen a few guys use removable sub boxes like yours

One guy has fitted shallow mount subs in the rear sail panel area. 8" and 10" will fit. There are pics as well if you do a search.
Old 03-31-2017, 05:38 AM
  #3  
Supreme Member

iTrader: (9)
 
battmann's Avatar
 
Join Date: Jul 2006
Location: Rochester NY
Posts: 1,097
Received 404 Likes on 257 Posts
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 4:11 Moser 9"
Re: Downfiring Sub Box

I've fit 8" subs in the sail panels with only minor modifications to the 6x9 speaker bracket:
https://www.thirdgen.org/forums/car-...-subs-fit.html
Old 03-31-2017, 10:20 AM
  #4  
Supreme Member
iTrader: (1)
 
thtanner's Avatar
 
Join Date: May 2015
Location: Temecula, CA
Posts: 1,149
Received 83 Likes on 67 Posts
Car: 1989 Pontiac Formula 350
Engine: L98
Transmission: 700R4
Axle/Gears: BorgWarner 3.27 Posi
Re: Downfiring Sub Box

I have a similar setup. I have 2x 10s right behind the passenger seats laying flat. I rarely used that space, so it keeps the whole rear well area fee for luggage.

Works fine. Make sure the subwoofer you choose is right for the box dimensions.
Old 03-31-2017, 01:43 PM
  #5  
TGO Supporter

iTrader: (2)
 
luvofjah's Avatar
 
Join Date: Feb 2003
Location: PNW
Posts: 2,476
Received 13 Likes on 12 Posts
Car: 91 Black Formula KR
Engine: 305 TPI R69/G92
Transmission: Astro A5-Pro 5.0-McCleod
Axle/Gears: US Gear 3.42 Eaton True Trac
Re: Downfiring Sub Box

Do you want the down firing sub to keep it in there instead of taking it out when filling up with luggage?

I think an up firing one would sound better, benefiting more from the "horn" of the glass, etc...

Make it fire up and put a grill on it...
Old 03-31-2017, 01:50 PM
  #6  
Junior Member

 
pwessels's Avatar
 
Join Date: Oct 2003
Location: Abbotsford, BC, Canada
Posts: 73
Likes: 0
Received 0 Likes on 0 Posts
Car: 87 Iroc Convertible
Engine: 305 TPI
Transmission: 5-speed
Axle/Gears: G92
Re: Downfiring Sub Box

I just finished this relatively small box with one 8" sub to drop in the well. It can be removed very easily, leaves a fair amount of space still in the well and sounds really good.
Attached Thumbnails Downfiring Sub Box-box.jpg   Downfiring Sub Box-box-installed.jpg  
Old 04-04-2017, 03:46 PM
  #7  
Supreme Member

iTrader: (11)
 
DynoDave43's Avatar
 
Join Date: Aug 2013
Location: MICHIGAN
Posts: 4,635
Received 751 Likes on 577 Posts
Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: Downfiring Sub Box

Neatly done, pwessels.


Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:14 PM.