GTR-Style Rear Seat Subwoofer - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

supercroc · 09-22-2013, 08:27 PM

Has anyone mounted a sub in the middle of the rear seat like seen in the GTR? I love the idea, but have no idea where to start. It should be a great way to save the boot space and keep all the weight between the wheels.

I would love to see some pics and hear about the installation!

DIM · 09-22-2013, 09:00 PM

It's a cool idea, but our car is a lot smaller than a GTR, and then if you add that; you wouldn't be able to fold the seats down.

2SeeKU · 09-22-2013, 10:06 PM

I like the idea too, but l would imagine you would need to stabilize the seat as it might vibrate.

FYI, this was a mod done by a few of the RX8 guys (I miss that car :-( ):

http://www.rx8club.com/series-i-inte...yer-amp-38560/

Again, rear seat did not fold down, hence the rigidity was there to support the sub.

pandora · 09-22-2013, 10:36 PM

Far from pretty and not exactly like a gtr but it is functional and sounds good for my first home built box. 10in shallow mount sub with a 300w amp back seat opens and close just like normal and pretty easy to remove. First pixture is with back seat in the upright locked position
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Zippy · 09-23-2013, 07:23 AM

Here's a sneak peak at my install I will be posting in the near future.

The fake wall houses an Audison Voce AV12 12" sub. With the back seat down the SQ is incredible. This may very well be the best sub I have ever heard on the SQ side. The sub is in a 1 cubic ft sealed box suppported by my amp rack at the rear bottom side, two brackets attaching it to the rear deck, and being pressed up against the wall.

Sbeezy · 09-23-2013, 08:32 AM

Quote:

Originally Posted by Zippy

Here's a sneak peak at my install I will be posting in the near future.

The fake wall houses an Audison Voce AV12 12" sub. With the back seat down the SQ is incredible. This may very well be the best sub I have ever heard on the SQ side. The sub is in a 1 cubic ft sealed box suppported by my amp rack at the rear bottom side, two brackets attaching it to the rear deck, and being pressed up against the wall.

Are you zippy from diyma?

Sent from my SPH-L710 using Tapatalk 2

Zippy · 09-23-2013, 10:36 AM

Yes I am. I'm redoing my 07RAV4 stereo currently.

Sbeezy · 09-23-2013, 10:52 AM

I'm gonna bounce over there and check out your log.

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kmbkk · 09-23-2013, 11:17 AM

Quote:

Originally Posted by Zippy

Here's a sneak peak at my install I will be posting in the near future.

The fake wall houses an Audison Voce AV12 12" sub. With the back seat down the SQ is incredible. This may very well be the best sub I have ever heard on the SQ side. The sub is in a 1 cubic ft sealed box suppported by my amp rack at the rear bottom side, two brackets attaching it to the rear deck, and being pressed up against the wall.

Would definitely like to see more pics, and hear your reasoning for facing it into the cabin vice rear firing the sub.

Sbeezy · 09-23-2013, 12:00 PM

Quote:

Originally Posted by kmbkk

Would definitely like to see more pics, and hear your reasoning for facing it into the cabin vice rear firing the sub.

Facing it in the car while sealed from the trunk directs all wave energy of the sub into the cabin, if this was a SPL setup it would give lovely amounts of pressure.

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Zippy · 09-23-2013, 12:29 PM

I haven't posted a build log for my BRZ yet. I have a video to record and it will then get posted. The other reason for building the wall was that I did not have to sound deaden the trunk at all. The wall has been deadened and sealed. From an SQ perspective, the speaker is not firing through anything when I lower the rear seat back.

kmbkk · 09-23-2013, 03:24 PM

Thanks for the response. The reason I ask is I'm designing an sq setup for my car and am trying to decide on the best way to install the subs.

mid_life_crisis · 09-23-2013, 04:24 PM

Quote:

Originally Posted by kmbkk

Would definitely like to see more pics, and hear your reasoning for facing it into the cabin vice rear firing the sub.

Quote:

Originally Posted by kmbkk

Thanks for the response. The reason I ask is I'm designing an sq setup for my car and am trying to decide on the best way to install the subs.

If you are interested in SQ you absolutely want to avoid forcing sound to travel through seats or panels to get to its destination (your ears). For quick, decent sound, sure you can mount subs in the trunk, but you'll waste a lot of power bouncing the sound around in the trunk and compromise the quality. Anytime you can figure out a way to fire a speaker directly into the listening area, do it!

kmbkk · 09-23-2013, 05:17 PM

That helps! I've built several loud systems, but this will be my first foray into an SQ system. It seems doing it this way (facing into the cabin) will be an easier design, when taking into account an amp rack, DSP & wiring.

09-22-2013, 08:27 PM	#1
supercroc Member Join Date: Jun 2013 Drives: BRZ Location: Los Angeles Posts: 41 Thanks: 1 Thanked 11 Times in 10 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	GTR-Style Rear Seat Subwoofer Has anyone mounted a sub in the middle of the rear seat like seen in the GTR? I love the idea, but have no idea where to start. It should be a great way to save the boot space and keep all the weight between the wheels. I would love to see some pics and hear about the installation!

09-22-2013, 09:00 PM	#2
DIM Senior Member Join Date: Sep 2012 Drives: 2013 Scion FR-S Location: San Antonio TX / Dyess AFB Posts: 948 Thanks: 26 Thanked 451 Times in 242 Posts Mentioned: 11 Post(s) Tagged: 1 Thread(s)	It's a cool idea, but our car is a lot smaller than a GTR, and then if you add that; you wouldn't be able to fold the seats down. __________________

09-22-2013, 10:36 PM	#4
pandora Member Join Date: Feb 2013 Drives: 2013 Scion FR-S Location: charleston SC Posts: 63 Thanks: 1 Thanked 7 Times in 6 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Far from pretty and not exactly like a gtr but it is functional and sounds good for my first home built box. 10in shallow mount sub with a 300w amp back seat opens and close just like normal and pretty easy to remove. First pixture is with back seat in the upright locked position Sent from my SAMSUNG-SGH-I717 using Tapatalk 2 Attached Images __________________ www.lowcountry-imports.com

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09-22-2013, 10:06 PM	#3
2SeeKU Senior Member Join Date: Mar 2013 Drives: Raven GT86 & Subaru WRX CS6 Location: ACT Posts: 105 Thanks: 16 Thanked 42 Times in 27 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I like the idea too, but l would imagine you would need to stabilize the seat as it might vibrate. FYI, this was a mod done by a few of the RX8 guys (I miss that car :-( ): http://www.rx8club.com/series-i-inte...yer-amp-38560/ Again, rear seat did not fold down, hence the rigidity was there to support the sub.

09-23-2013, 07:23 AM	#5
Zippy Member Join Date: May 2013 Drives: 2013 Subaru BRZ WRB AT Location: Columbus Ohio Posts: 78 Thanks: 1 Thanked 23 Times in 20 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Here's a sneak peak at my install I will be posting in the near future. The fake wall houses an Audison Voce AV12 12" sub. With the back seat down the SQ is incredible. This may very well be the best sub I have ever heard on the SQ side. The sub is in a 1 cubic ft sealed box suppported by my amp rack at the rear bottom side, two brackets attaching it to the rear deck, and being pressed up against the wall.

09-23-2013, 10:36 AM	#7
Zippy Member Join Date: May 2013 Drives: 2013 Subaru BRZ WRB AT Location: Columbus Ohio Posts: 78 Thanks: 1 Thanked 23 Times in 20 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Yes I am. I'm redoing my 07RAV4 stereo currently.

09-23-2013, 10:52 AM	#8
Sbeezy Senior Member Join Date: Apr 2013 Drives: 2001 ZX2, WRBP BRZ (soon hopefully) Location: Port Arthur Tx Posts: 182 Thanks: 111 Thanked 23 Times in 23 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I'm gonna bounce over there and check out your log. Sent from my SPH-L710 using Tapatalk 4

09-23-2013, 12:29 PM	#11
Zippy Member Join Date: May 2013 Drives: 2013 Subaru BRZ WRB AT Location: Columbus Ohio Posts: 78 Thanks: 1 Thanked 23 Times in 20 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I haven't posted a build log for my BRZ yet. I have a video to record and it will then get posted. The other reason for building the wall was that I did not have to sound deaden the trunk at all. The wall has been deadened and sealed. From an SQ perspective, the speaker is not firing through anything when I lower the rear seat back.

09-23-2013, 03:24 PM	#12
kmbkk First 86 Driver Baby! Join Date: Jan 2012 Drives: FR-S, Flex Location: Williamsburg, VA Posts: 1,760 Thanks: 520 Thanked 525 Times in 356 Posts Mentioned: 32 Post(s) Tagged: 3 Thread(s)	Thanks for the response. The reason I ask is I'm designing an sq setup for my car and am trying to decide on the best way to install the subs.

09-23-2013, 05:17 PM	#14
kmbkk First 86 Driver Baby! Join Date: Jan 2012 Drives: FR-S, Flex Location: Williamsburg, VA Posts: 1,760 Thanks: 520 Thanked 525 Times in 356 Posts Mentioned: 32 Post(s) Tagged: 3 Thread(s)	That helps! I've built several loud systems, but this will be my first foray into an SQ system. It seems doing it this way (facing into the cabin) will be an easier design, when taking into account an amp rack, DSP & wiring.

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