Subwoofer(s) in hatchback floor?

[IN CARS]

I know this is probably crazy. Accepting that I am 45 years old, and listen to The Beatles, I'd like to add a bit of "thump" to my Sonic hatchback. For when I do play some Numan or NIN. But I lost most of my hearing in my 1988 Hyundai that had 18 drivers in it! :blankface: So I'm not after serious sound here.

Been tossing around various sub ideas, from low profile line-level amp/sub enclosures to custom boxes. Thing is, I want to preserve my trunk/hatch space, and don't really want anything back there in the way. I am keen on using the space between the spare tire cover and the lift-out hatch false floor. One of those low profile amped deals would fit there, but their reviews are not so good.

What would happen if I just bought, say, two 8" or 10" subs and a line level capable amp, cut two holes for the subs in the floor thingy, and wired it all up? Accepting that perhaps some calculations of volume would need to be done, would it sound half way decent? I'm not after serious "car dat go boom" crap, just some low end--something I can modestly feel.

I've forgot most of what I knew about subs, even though I sold the stuff back in the late '80's. Any thoughts? Subs in the floor would be relatively out of the way, and I reckon I might even be able to continue to use my rubber floor mat back there, just cover 'em up.

Thanks! CG

 

[law242]

here you go

 

[law242]

8ts a relatively big box too and the amp sits to the side of it

 

[RoXXXanne13]

you stole my idea!! but with the lower compartment, so the sub will sit where the spare goes n ****

 

[IN CARS]

Kinda want to keep my spare. LAW242: Can you list your components? Is your amp speaker-level input? More pics please!

 

[law242]

spare and all are still there the box is slim and its a Rockford p3. don't remember the amp its some closeout company I got on the cheap. used a line out converter and have a bass knob hidden under my steering wheel pretty good sounding system if I say so myself.


side view of the box, nothing underneath is affected. amp sits to the left and I still have room to hide stuff. to be discreet I still use the tire cover on top of it to conceal the sub box.


mock up

 

[law242]

you stole my idea!! but with the lower compartment, so the sub will sit where the spare goes n ****

I did this months ago haha

 

[BRNZY]

Kinda want to keep my spare. LAW242: Can you list your components? Is your amp speaker-level input? More pics please!

Are you looking for this .....


There is still the sub floor that fits over it perfectly and my spare is still under it all.

 

[drhollen]

Yes, BRNZY. I want 100% hidden under cover. Can you give dimensions and sub specs?

 

[xanie]

I didn't want to lose the utility of the under trunk.

I ended up going with a JL Audio 10TW3-D4 low profile subwoofer 10TW3-D4 - Car Audio - Subwoofer Drivers - TW3 - JL Audio and built a sealed box with my JL Audio XD700/5 Amplifier.

I also have all of my emergency equipment underneath the floor, and a completely usable trunk.

 

[drhollen]

Awesome. Thanks for the photo. Do you ever have heat problems with amp? How do you think that JL TW3 sounds? Is it a compromise sub due to profile, or sound just as good as normal height W3v3 sub?

 

[bchs89]

I ended up designing and building a box to fit under the false floor too. I had to be pretty generous with the dimensions to fit my sub which needs at least 1 cubic foot of space to properly fire. I am running a Kicker Solobaric L7 12" with a 2 farad capacitor and a Kenwood 1000W amplifier. I had to completely remove my spare tire, jack/toolkit and spare tire mount bracket. I had to cut the bracket out with a dremel tool. See my attachments here. I used a free program called SketchUp to do all the drawings after taking initial measurements. It's not perfect but it works well and sounds good.

 

[dkurtz42]

JL Audio sub mount

My twist on similar ideas.



Main floor sits on top and the setup is completely hidden.