25cm/10" subwoofer into the spare tire molding

[TStar]

hi ppl
i was so lucky to get some used Alpine 6106GX for 10bucks on ebay just an hour ago or something..300w peak, 100 rms, pretty oldschool, but since i don't want to spend much more money on my setup, i had to have it (nana)

i want to put this thingy into the spare tire enclosure in the trunk.. i know that this woofer would like to have about 100litres of volume to play perfectly, but well ... it won't get it...

a) my amp (some cheapy jensen xa4150 with 4x75rms) supports "triband-mode"... front system + sub... how do i wire a single sub to 2 chan output wires? does that sort of stuff usually work well ?

b) how could i make a nice lowcost enclosure/mounting bezel for the sub with not too much work at all (the oem carpet will most prolly be laying over it anyway)....

 

[Poseur]

Please clarify if you're looking to fit this inside of youre spare or remove your spare entirely and put this in it's place. Also, if you could get a pic of the area it would be nice. some cars on the us market have raised subfloors already and some don't, I'm not very familiar with european models.

As far as wiring, it's simple enough, you would just "bridge" the 2 rear channels of your amp, (run +left and -right or vise versa) run the front 2 channels as normal.

for the enclosure, Umm... err... I'm not realyl sure there is a cheap and easy way to do this. if there were, it would've been done alot. My best advice is to see if you can possibly manage to get creative with some wood. Fiberglassing is messy, time consuming and expensive even if you do it yourself...

 

[TStar]

the spare tire will be removed...the subwoofer wouldnt fit into the spare tire itself anyway...

damn, i have no real skills when it comes to working with wood and all that :\\\
i just thought someone would have a really nice and simple idea for me...

i will make a pic of the area tomorrow..i think it's the very same as with the usdm p5 ...

 

[TStar]

datsh my trunk

 

[Anakin]

a) my amp (some cheapy jensen xa4150 with 4x75rms) supports "triband-mode"... front system + sub... how do i wire a single sub to 2 chan output wires? does that sort of stuff usually work well ?

Simply just connect front channels as they should and then connect the sub to the rear channel left+ and right - (leave left - and right + empty). Make sure you select the triband mode before powering up your system. (rockon)

 

[Poseur]

Yea looks the same thing I was wondering about is that some have a raised subfloow (plastic trays around the tire) which would honestly help you out there... Umm, I'd honestly truely look into seeing if a standard box would be too annoying or not. tucked away stuff is nice, but like I said, it's never allthat easy and beyond that, I'm not evne sure if there's enough room for that speaker to fit there assuming youv'e got the same "hump" underneat the spare that the US cars do. it would make for tight magnet clearance. Prettymuch fiberglassing would be the only way to get it accomplished. I dunno, perhaps I'm forgettingabout something, but simple and tucked into such a nook is not too likely.

 

[TStar]

i need all the room in my trunk and i want everything to look oem, so yes, a standard box is not good for me :\\\ i loved the spare tire enclosure idea so much

yet i have no idea the woofer's builtin depth, but i will find out... i must accomplish this somehow

 

[Poseur]

Basically, you can jsut pull your spare, and set teh sub in ther eand see if it sticks up. If you've got like atleast an extra inch, then you may be in luck.

 

[chuyler1]

I doubt a 10" is going to fit but I could be wrong. I did a test fit with my 8" sub and it barely fit. By the time you build up the floor you will end up taking up more space than a conventional install.

In any case, fiberglass will be involved to do the job right. To reduce the amount of space consumed by your sub, a box similar to this would be best:
http://www.msprotege.com/forum/showthread.php?t=91147&highlight=fiberglass

Otherwise, I suggest building (or purchasing) a small sealed enclosure for a single 10" sub and buying some quick-disconnects for the speaker wires. When you need the extra space, remove the sub.

FYI...I do not recommend removing your spare. Murphy's Law...what ever can happen, will happen and at the worst possible time. So picture yourself on a rainy day, late for a meeting, sitting on the side of the highway waiting for AAA to tow you to the nearest tire repair shop where they will tell you they can't fix it for a few hours. Is saving space worth all that?

 

[TStar]

i have studied 3 different kinds of DIYs for spare tire subwoofers and it seems they produce nice results when done the right way...
workshop1
workshop2
workshop3

my reason for going for the spare tire molding:
i always want to be able to transport 4 of my rims+tires in the trunk...so i need pretty much all the space and any boxes/side installations will most prolly take away too much space.. some box with quick connects for the speaker wires would be alright somehow but definately not an optimum solution...

and there are 2 other reasons why i favor the spare tire molding:
- the woofer has a VAS of 100litres...an installation in an enclosure on the left/right panel space would bring maybe 35-40litres maximum,the spare tire molding offers about 65-70litres...
- the spare tire is good for nothing (at least for me). i wouldnt be able to replace a wheel on the fly anyway (because the postert side skirts are mounted in a way that you need a special kind of carjack with a wide support plate to lift it up, otherwise you would damage the skirts...)

ah damn, it's all messes up somehow.... (blah)

as soon as the the woofer speaker arrives i will let you know how deep it goes and if it can be installed in the spare tire molding anyway.thx for your ideas for now.

o btw: i had the idea to place a can of that magic tire repair spray/glue in my car, so i'm not totally helpless when one of my tires fails...

 

[khaosman]

I was thinking about doing this also, but I don't think it is the best solution. Mainly due to the giant bump thing in the bottom of the well that holds the spare tire in place.

 

[TStar]

well that's why i favor the fiberglass idea... that would be a 100% fitting solution..expensive but maybe the best solution available...

 

[TStar]

yohoooo i found someone who will produce a fibre sub enclosure... will cost me about 50euros of material and the gas to drive to his place.... tomorrow morning i will pick up my package with the sub from the post office

 

[chuyler1]

Update?

 

[TStar]

not yet,i was horribly busy with other stuff on the car...

 

[Shadow]

I've got 2 x 12"'s in my spare-tire well in my P5.... you should be able to get a 10" in there no problem

 

[chuyler1]

The goal is to get it in there without using any additional space... The box for your 12"s must stick up out of the tire well.

 

[TStar]

exactly..update:
wednesday is the day, he invited me to his place, all material lies there....

i made an additional foto of the trunk's "inverse/rear" side... so it'll be a little challgenge to build some nice fibreglass enclosure for the sub...

i got the idea to leave some little space behind the enclosure to put stuff there like a first aid box or so...

 

[RyanJayG]

I know a guy with a 15" treo sub in there... but it requires a false floor, which can look stock, like his does. but it wont be cheap.

 

[TStar]

i got some piccies from today