924Board.org

[Llamaguy]

has anyone found a suitable place to mount a subwoofer box and amp that doesn't have it sitting in the back seat or in the hatch area? I thought about the spare tire well but I think I'd rather keep a spare in the car. I thought about removing the lower portion of the seat and filling it in with a custom box and then being able to cover it with the top part of the seat.


Also, what is the other stock size speaker that fits in the rear spots besides the 4x6?
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1987 924S Guards Red
1997 Suzuki Tl1000 Supersport

[ideola]

Well, this doesn't really meet the "not in the hatch area" requirement, but I think it is a novel approach...see the pix I posted of my Bazooka NOS-style sub installation here:
http://www.924board.org/viewtopic.php?p=109966#109966

The nice thing about this set up is that it actually takes surprisingly little space in the hatch, works with the seat up or down (pictured with the seat folded down) and the hatch cover can be pulled to completely hide the sub for security purposes. And of course, the NOS tank looks way cool!

VS also has some pix on his site showing his custom sub box in the spare tire well:
http://www.vaughanscott.com/turbonium/turbonium.htm

The other natural location would be to place custom boxes on either side of the hatch area under the carpet behind the wheels, although you would have to take great care to water proof the enclosures due to the drain lines that empty into those spaces.

Regarding speaker sizes, I went with 4" coax in the front doors, 4x6" coax in the rear, and the 10" powered Bazooka NOS sub. Most of the power for your sound goes to the sub. Honestly, I can't imagine why anyone would need anything bigger than 4x6" if you go with a really powerful sub setup like mine. It's painfully loud and very clean. Spend your money on the sub and sub amplification.

On that note, here are some other considerations:
The only thing I may add to my setup is a secondary amplifier for the coax speakers, which I'm currently just driving off of the in dash unit. My blaupunkt tampa bay head has enough built-in power to be sufficient in conjunction with the powered bazooka. Make sure you have a head with the highest rated preamp output signal you can afford (2v minimum, 3v is better), as this is more critical than wattage...RMS wattage is a secondary consideration to preamp output signal strength. The higher the preamp output, the harder you can drive the head before you get distortion at the output...this is really important whether you're using just the head or an external amplifier...it's the old "garbarge in/garbage out" situation...if you're weak head is overdriving the preamp outputs, you'll get crappy signal at your amplifier input...no matter how much wattage it has, it will sound like crap.

Hey, did I just contribute something worthwhile? I may be stupid when it comes to mechanicals, but I do know sound theory!!!
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erstwhile owner of just about every 924 variant ever made

[-nick]

I'm using the infinity kappa 4x6's in the doors and the rear with a small kenwood powered sub that sits behind the driver seat in the floor. It sounds great considering, but 4x6's just don't put out any midrange. If you're any kind of an audiophile, you're going to want to fill up the mid. For most/many, it probably won't be worth the effort.

Anyway, check out infinity's powered sub. It's fairly compact and could possibly slide behind one of the front seats in the floor. Otherwise, you're looking at using the rear side cubby holes or the spare tire well and fabbing up a box. If you don't need deafening levels, the very small kenwood w00x does a great job.

I suggest you do a search on the subject, it has been discussed many times.

PS- I think you're thinking of the 6" speaker option that later 944's had for the rear. You'll have to do some grinding to use anything other than a 4x6. I even had to do some grinding to get the infinity 4x6's to fit in the rear.

nick

[m3vil]

i just got some JL audio W7 12's for trade on a paint job i did for a local stereo store. they are very tall, double or maybe triple stacked magnet, but with some fiberglass work (read lot's of time) they'll fit very well into the tool cubbies. these are actually great spots for subs no larger then 12 inches, preferablly in sealed boxes. i'm not a 100% sure how well they'll work as far as imaging goes, but i've found the subs in a hatchback usually sound good no matter how you face them, assuming your box is up to spec.
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1977 924 (early) Martini Package

[Llamaguy]

I ended up making an 'L' shape to make a box where the rear seat was. Looks pretty good for about $10 of vinyl, glue, and staples. It doesn't seel so it's just a free air setup, but it fills in the low end that I needed.
I couldn't put anything in the rear cubbies because stuff alway gets wet, (note to self, move tools to under the box). I did get a 150w RMS Blaupunkt amp and a 12" transparent sub new for $120, so except for the rear speakers, It's still German.
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1987 924S Guards Red
1997 Suzuki Tl1000 Supersport

[PORSCHEV]

you guys must think my set up is insane then




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1976 924
5 lug conversion, 17'C2 wheels,custom body work,327 vette engine.

1978-#53 "D" track racer.

[m3vil]

i wouldn't say it's in sane, maybe not as neat as possible, or the best use of space. but it does look pretty clean, and matches the overall look of the car
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1977 924 (early) Martini Package

[Bassmaniac]

Very late repply. I Know.
If you or your installer are skilled enought working with firberglass, you can imitate my install. I took the mold of the large pocket between teh rear tire whel and the bumper and created a subwoofer box that can be use for a 8 inch sub. You can add a litle more hight with 3 layers of 3/4 inch MDF wood, and on use up to a 10" subwoofer. You will roughtly get an enclosure of about 0.6 cubit feet that can give you a nice sound and enought spl to drive arround feeling your tunes at up to 100MPH without the roof (using decent equipment). Best part is that you do not sacrifice any usable space, still able to fit the moonroof in the hatch, and the original carpet acts like an excelent camouflage for it.
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1982 924
Iasca SQ judge / Installer

[Llamaguy]

funny thing I noticed last night: The low fuel light turns off when my sub hits. Wonder if this is because it moves the float or is just drawing the power. Probably the first, but funny none the less.
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1987 924S Guards Red
1997 Suzuki Tl1000 Supersport

[Paul]

Is the ground wire to your amp as large as the positive?

[Llamaguy]

12 gauge, i used the ground in the back, under the tail lights. Amp sounds fine, just noticed that the light on the dash is "dancing" hehe
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1987 924S Guards Red
1997 Suzuki Tl1000 Supersport