Finally! My sub is done at last!

As usual, this project took longer than I expected, but now it's finally finished apart from some final adjusting.


I started by removing unnecessary plastics and other stuff from the boot






Made some plywood walls






Slapped some fiberglass on the bottom






Made a lid for the box

Some finishing touches





Some ruthless stabbing





A grille in the hole




Done! (I should probably do a bit of cleaning in there too...)

Hey.........You could get a job on 'Pimp my Ride' with work like that! If thats in the boot whats in the dash?

Thanks, mate! Nothing special in the dash, I'm afraid, just a Becker headunit and hopefully in the near future new tweeters in the A-pillars. I like to keep it low key.

Very nice. like how its not taken your boot space.

where did u placed your amplifier??
Sam

My trusted old (and I mean old...) Alpine is in the passengers footwell.

Need help

Kkallioj said:

Some finishing touches

Done! (I should probably do a bit of cleaning in there too...)

Click to expand...

Hey there

Can you give me a more in depth description of how you built the sub?
Plus how did you feed the wiring from the sub through to the amp to the head unit.

Thanks in advance


A2SPORT.

Sorry it's taken so long, I've been on holiday.

I removed the plastic walls in the boot with an angle grinder. Some kind of saw would propably be even better.
Next I took some cardboard pieces and used them to figure out the shape of the walls. I used the cardboard to cut the actual walls out of plywood and screwed them together.
Then I put (lots of) tin foil at the bottom of the boot to keep fiberglass from sticking and also put the plywood frame in. I then used a few layers of fiberglass to make the bottom for the box. You could make the bottom just out of fiberglass, but it takes some time to lay as many layers as is needed for proper thickness and I was too lazy, so after I had the shape and could take it out of the car I poured a mixture of fiberglass resin and fine sand on the bottom of the box.
Then I made the top of the enclosure with the cardboard method.
I use a Pioneer TS-SW1241D speaker because it doesn't take a lot of space. The enclosure is small, net volume is maybe about 12 liters, so a 10" speaker would've been better, but there wasn't any in this series when I bought the speaker a year ago. There's one available now, though. The lowest notes aren't very loud, so I need to use heavy low-pass crossovers to filter the higher notes, but it works just fine.

The wiring from the head unit was quite easy to feed after removing the sidepanel of the center console. It's held by only one screw in the front and some clips at the back. For the wires from the amp I removed the front seat, rear seats and the side- and rearpanel of the boot.

Hope this helps.

Almost forgot. The box stays firmly in place as it is, but for extra safety a made a steel bit from under the battery's holding screws to the box. You can see it in the 5th pic.

great job, I made one for my last car that hugged the curve of the boot (alfa GTV) it was such a big job it's scared me from doing this again, cost me 3 full days in the shed with tools everywhere!! I like what you done and may even try it.

Of course you could go OTT and just give up the boot completely

lol - magic, is that photoshopped or real - tell me its not real!

wow

EF MAX said:

Of course you could go OTT and just give up the boot completely

Click to expand...

Now That's crazy man

It is real. He did the sub later. It is heavy (125 kg or more). and the doors are:

Does someone know if a self-powered little subwoofer system could be fitted in the passenger footwell ?
I mean the kind of little enclosure with integrated amplifier and a 16 or 20cm driver + an "air column", like Alpine or Pioneer or Blaupunkt make...
Of course I know this is not the best choice for sound quality, but related to the cost, ease of fitting, and to the sound without sub, this could be more than an acceptable solution.
Apart from dimensions, I just wonder if the bass sound would be OK with the footwell hole cover in place, the thick carpet (and overmats, and rubber over-overmats in winter)
Thanks,
Fabrice

Yes, it had been done successfully in Germany. I have more pics.

it should also be possible to get 30l of volume from that cubby if just using a baffle on the top for the sub.... maybe.

Bret

erstens said:

Yes, it had been done successfully in Germany. I have more pics.

Click to expand...

Thanks Erstens,
I've already seen that nice job, but that's a lot of work... I was rather after a simple "plug & play" solution like this, this, this, or this.

In other words, what's the dimension of the bigger parallelepiped that can be dropped into the passenger footwell ?
And how would such a subwoofer behave with the cubby hole cover + carpets in place ?

bretti_kivi said:

it should also be possible to get 30l of volume from that cubby if just using a baffle on the top for the sub.... maybe.

Bret

Click to expand...

But it is not sealed! In the rear, there is just the carpet. Not metal. So tgis cubby is open/many holes in there.