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Old 07-18-2003, 04:13 PM   #1
skubiekid
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Question putting a subwoofer in the STi

Has anyone put a subwoofer in the trunk of their STi? I am going to put one in mine but I am worried that because the trunk has no way to vent to the passenger cabin, the sub's sound will simply be trapped in the trunk; thus rendering the sub useless. I have considered cutting a pass through into the back seat or cutting holes in the parcel shelf to vent into the cabin but I wanted to see how other have deat with this problem before I go cutting holes in my new $32,000 car.

If you have a sub, what kind of box is it in, do you have problems hearing it, and how did you vent it into the cabin (if you did)?

Much Thanks!
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Old 07-18-2003, 04:22 PM   #2
scoobydrew06
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The sub will not be useless in the trunk even with the trunk sealed, cept for the fact that it will add weight to you STi ...Bass carries extremely well, and you should be able to here the bass with no problem.
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Old 07-18-2003, 04:37 PM   #3
isubwrx
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i have 2 10" subs in my trunk and they sound great
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Old 07-18-2003, 04:41 PM   #4
happasaiyan
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yes, the trunk is VERY well sealed. to the point where my sub gets over 2x louder once i open the trunk. porting the rear shelf seems like a very good idea now that you mention it.......

...maybe ill take that project on this weekend...
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Old 07-18-2003, 05:01 PM   #5
dsmperformance
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I have one JL Audio 10 mounted in a corner fiberglass enclosure. Sounds great. Subwoofers produce low frequencies and are difficult to tell where they are coming from. I'm not into SPL, so it sounds good enough for me. I saw a pic where someone cut a very large opening in the rear deck for ventilation purposes. Thats up to you if you fell like hacking the rear deck. I surely won't do that!
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Old 07-18-2003, 05:30 PM   #6
Truthunter
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I'm thinking of obtaining the Canadian model's rear seat back with passthrough and using a single infinate baffle 12". Has anybody looked into getting the Canadian model seatback?
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Old 07-18-2003, 05:42 PM   #7
voodue
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I have a 10 inch sub in my trunk and it sounds great. Before I added the sub my system was missing something. Now it sounds good. Just enough bass to fillout the music.

It sounds loud enough to me without venting. Not obnoxiously loud that the car next to you can't have a conversation. Any reputable stereo shop should be able to put a sub in your trunk for you to try out. Test it out before you order the rear seat passthru.
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Old 07-18-2003, 07:05 PM   #8
drewzter
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I also put a 10" JL and amp in my STi trunk and it sound great. I am not into the vibration thing. Just a natural sound. It will get louder than I would ever want it of course. I think the rear deck openings that are covered with the carpet material are enough of a port for it but I am not expert. My ears say it is excellent.
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Old 07-19-2003, 01:07 AM   #9
ImprezaRS dot com
over boosted again
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I have two 10" subs in my STi trunk just behind the back seat,
and they still leave plenty of room for a couple of bags of golf
clubs, and other odds and ends, and bass thump travels into the
passenger compartment just fine.

Of course it could be that the ghetto blue neon makes the seats
more transparent to passing the bass




Sorry about the size, can't edit the pic on my wife's laptop...

Last edited by ImprezaRS dot com; 07-19-2003 at 01:18 AM.
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Old 07-19-2003, 02:28 AM   #10
skubiekid
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thanks for the advice guys. i've done several installs before and i think i'm going to vent the trunk into the cabin cause i am going for a soundoff type system. unfortunately the seats don't have a armest so i can't make a passthrough but i'll figure something out.
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Old 07-19-2003, 05:48 AM   #11
CreoWRX
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I have a single 10" (Audiomobile EVO) run off a bridged PPI amp and it provides more than enough bass for me. The only problem is coming up with a way to secure the box, yet still make it easily removable.



-Mike-
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Old 07-19-2003, 05:21 PM   #12
Hummer
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Here is mine. 12" JL W3 with a 250/1 JL amp.

I secure mine with a bent bracket. You can see it at the top{2 screws}. The bracket runs 1/2 down the back of the speaker and is secured by 4 additional screws.

http://home.kc.rr.com/cerberus/Trunk.jpg
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Old 07-19-2003, 09:36 PM   #13
Ulf Wafflestein
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I've got two JL 10w6v2's in my trunk, and let me tell you that without them, my system would be sorely lacking in bass. They are awesome, and really add to the sound system. It's kind of annoying how they are so heavy that when they move around when I take a corner too fast, they move the whole mat covering the spare, intead of just moving by itself.
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Old 07-20-2003, 02:37 PM   #14
JDMTEG98
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Quote:
Originally posted by Hummer
Here is mine. 12" JL W3 with a 250/1 JL amp.

I secure mine with a bent bracket. You can see it at the top{2 screws}. The bracket runs 1/2 down the back of the speaker and is secured by 4 additional screws.

http://home.kc.rr.com/cerberus/Trunk.jpg

LOL I got the exact same Sub, it hits nice. I secure mine down with a few pieces for Indsustrial strentght Velcro, works like a champ
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Old 07-20-2003, 03:50 PM   #15
dsmperformance
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Everyone else posted a pic, I might as well too. Mine is bolted in the trunk corner and velcro for extra security...


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Old 07-20-2003, 09:35 PM   #16
scoobydrew06
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^Where did you buy that enclosure???^
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Old 07-20-2003, 10:01 PM   #17
dsmperformance
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Quote:
Originally posted by scoobydrew06
^Where did you buy that enclosure???^
I fabricated it myself out of fiberglass and MDF.
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Old 07-20-2003, 10:03 PM   #18
scoobydrew06
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how much to make me one and ship it to mass?
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Old 07-21-2003, 02:44 AM   #19
dsmperformance
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1991 TSi

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Quote:
Originally posted by scoobydrew06
how much to make me one and ship it to mass?
Drop me a line at clentz@stargate.net for details. Right now, I am gauging the interest for the enclosures.
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Old 07-24-2003, 02:35 AM   #20
RoadRageDev
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I'm highly interested in that enclosure you made as I suffer from the same problem in my WRX of the box sliding the entire carpet covering the spare. Although will the enclosure fit a WRX as well as an STi?
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