Custom Subwoofer Install

gichoke · 03-08-2007, 11:22 PM

Ever since I picked up the 328, I have been dreaming of ways to make a complete stealth sub install using the "spare tire" box. Does anyone have a custom sub install in the E90? Has anyone used that box as a base? I would love to see pics for ideas.

A problem I am forseeing is that without rear-folding seats there is very little air movement between the trunk and the cabin. Has anyone done anything to fix this? I am thinking about creating a port behind the armrest, but would be very interested in hearing any other possibilities before I cut up the back of my car.

Cheers!

sillygoat · 03-09-2007, 05:37 AM

i was picturing the same exact thing.. but i was plannin one sub in the "spare tire" box since its small... idk if itll fit though... i dont want to lose trunk space

gichoke · 03-09-2007, 10:14 AM

I think the spare tire box would be a good candidate for either an 8 or 10" sub. The next issue is to create a pass through on the trunk liner and implement some kind of grill so that you still retain full use of the trunk. I am waiting on this move though...I have been chatting with the guys at bavarian soundwerks and they are supposedly designing a box for the e90 which will hopefuly use the spare tire box.

ChadE · 03-09-2007, 10:17 AM

JL will be doing some kind of stelth box soon im sure...

canucklion · 03-09-2007, 10:20 AM

have you thought of using those shallow subs? and put them in place of the stock subs underneath the seats?

ReusAudio328i · 03-09-2007, 12:31 PM

I was in the same boat as you guys until I heard of Reus Systems in Orange, CA. They have a complete stealth system for BMW's. Well I went to check them out and their system is awesome. Once I heard it I got it. Great thing about their systems are that they come with a lifetime warranty. When my friends got in the car and I turned the system on they didn't even know where the speakers were. I suggest that you check them out. www.reusaudio.com Ask for Rick.

DrewBert · 03-09-2007, 01:54 PM

wow that sounds like a infomercial lol, do you have a pictures of this install?

ChadE · 03-09-2007, 01:56 PM

Spam

ReusAudio328i · 03-09-2007, 03:26 PM

I have no affiliation with them whatsoever and second, this is not spam. Pictures will not show you anything since it is all stealth. By the way, you can go onto any forum board whether its M5Board, Merecedes Benz, Lamborghini, Porsche, and all will tell you that have their system how good it is. You do not have to take my word for it.

lvwirelessguy · 03-10-2007, 12:01 AM

Then why is your user name the same as their company name?

SteanLV · 03-10-2007, 04:11 AM

lol good 1

gichoke · 03-10-2007, 10:25 AM

Oh this is getting funny now! The subs under the seats are TINY. I havent been able to take a good look at them yet, but from the space available under the seat and size of the grill and the LACK of bass in the E90, its probably a dedicated midrange driver 4-6 inches. Replacing them is a possibility. Besides all of the work to take out the seats, there is not that much room to push air and you will suffer from a lack of significant bottom end.

E91 Dude · 03-11-2007, 11:38 PM

Quote:

Originally Posted by lvwirelessguy

Then why is your user name the same as their company name?

Well played, sir.

Off-topic, but gichoke, do you train BJJ?

boggysv · 03-12-2007, 04:23 AM

Quote:

Originally Posted by gichoke

Oh this is getting funny now! The subs under the seats are TINY. I havent been able to take a good look at them yet, but from the space available under the seat and size of the grill and the LACK of bass in the E90, its probably a dedicated midrange driver 4-6 inches. Replacing them is a possibility. Besides all of the work to take out the seats, there is not that much room to push air and you will suffer from a lack of significant bottom end.

THe underseat subs are 8" iirc.

JL might launch a shallow line soon, but it's going to be 12" and above it seems

Pioneer has a few shallow 8" as well, but i'm not sure they can beat well.

Other than that, I'm still waiting for a sq brand to launch a shallow sub. Really dont like the idea of a sub-box sitting in my trunk. Maybe a seat mount to give the rear passengers a good massage?

gichoke · 03-12-2007, 11:45 AM

I have read about the shallow mounts and they look promissing, but I am not sure about the amount of volume the undermount subs in the e90 have to move air. A well placed sub in the trunk with some kind of pass through to the cabin will provide the bump and bottom end that those will not be able to push because of lack of air.

I am making another post as I got a response from MTX on the thunderform enclosure. They want people to email them so they can gauge interest. Please let them know!

gichoke · 03-12-2007, 12:14 PM

Are the underseat subs you speak of for the stock audio, or Logic 7? I dont see why replacing those with Pioneer or JL audio shallow mounts would be a bad idea. The bass will not be the same as it would be in an enclosure mounted in the trunk, but it would make use of the design that is already built in the car.

boggysv · 03-12-2007, 01:42 PM

Quote:

Originally Posted by gichoke

Are the underseat subs you speak of for the stock audio, or Logic 7? I dont see why replacing those with Pioneer or JL audio shallow mounts would be a bad idea. The bass will not be the same as it would be in an enclosure mounted in the trunk, but it would make use of the design that is already built in the car.

Yup, nothing sounds close to a full sub, but I absolutely hate a sub-box in my trunk. Only way I'd do it is to mount on the rear deck, or against the seat.

They are both 8" iirc, except for the basic 6 speaker system (which did not come to america). Judging by their size, they might be able to play 50-2000hz. I'm not too sure of the specs yet. This will compliment the smaller door speakers to provide more midbass hopefully.
Imaging would be a bish though ( I want a full oem look, no modified kickpanels).

Dont quote me on anything, I havent even ordered my car yet.

Josh49 · 03-12-2007, 02:05 PM

http://www.e90post.com/forums/showpo...12&postcount=6

e90post member Jan's..

I think jmh if you have any more questions for him..

gichoke · 03-12-2007, 02:12 PM

If you have second thoughts about putting a box in the trunk, do you mean having a Qlogic type box floating around in the trunk? I dont want to do that either. The new 3 has storage box in the trunk which is more than adequate for a stealth sub installation. What is the abreviation you keep putting next to the speaker size: iirc?

Josh49 · 03-12-2007, 02:13 PM

If I recall correctly.

Please see the pics in the thread I just posted, I think it is what you are looking for..

gichoke · 03-12-2007, 02:57 PM

Yup the install on the attached pics is very nice, obviously a very classy shop. I will wait a bit until I hear more from the JL/MTX/BASsoundwerks side...

boggysv · 03-12-2007, 03:08 PM

nice setup.

Is that thing in his coin box the sub level control? Does it mean he controls the volume just like how he normally does?

Any reason why he opted for the audiocontrol instead of the JL cleansweep?

JL recommends using their own volume knob with the cleansweep. It does a pretty cool job of auto calibrating the eq though. But using their remote would be a pita.

03-08-2007, 11:22 PM	#1
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	Custom Subwoofer Install Ever since I picked up the 328, I have been dreaming of ways to make a complete stealth sub install using the "spare tire" box. Does anyone have a custom sub install in the E90? Has anyone used that box as a base? I would love to see pics for ideas. A problem I am forseeing is that without rear-folding seats there is very little air movement between the trunk and the cabin. Has anyone done anything to fix this? I am thinking about creating a port behind the armrest, but would be very interested in hearing any other possibilities before I cut up the back of my car. Cheers!
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03-09-2007, 05:37 AM	#2
sillygoat Captain 60 Rep 804 Posts Drives: 335i tiag Join Date: May 2006 Location: las vegas, nv iTrader: (11)	i was picturing the same exact thing.. but i was plannin one sub in the "spare tire" box since its small... idk if itll fit though... i dont want to lose trunk space
	Appreciate 0 Quote

03-09-2007, 10:14 AM	#3
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	I think the spare tire box would be a good candidate for either an 8 or 10" sub. The next issue is to create a pass through on the trunk liner and implement some kind of grill so that you still retain full use of the trunk. I am waiting on this move though...I have been chatting with the guys at bavarian soundwerks and they are supposedly designing a box for the e90 which will hopefuly use the spare tire box.
	Appreciate 0 Quote

03-09-2007, 10:17 AM	#4
ChadE Major 110 Rep 1,426 Posts Drives: 2008 328i Join Date: Feb 2007 Location: Davidson NC iTrader: (0)	JL will be doing some kind of stelth box soon im sure...
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03-09-2007, 10:20 AM	#5
canucklion pull my finger to get your kinder® surprise 148 Rep 10,455 Posts Drives: circles around you Join Date: Dec 2005 Location: Toronto, Canada iTrader: (9)	have you thought of using those shallow subs? and put them in place of the stock subs underneath the seats? __________________
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03-09-2007, 12:31 PM	#6
ReusAudio328i Enlisted Member 1 Rep 30 Posts Drives: 2007 BMW 328i Join Date: Jan 2007 Location: Southern California iTrader: (0)	I was in the same boat as you guys until I heard of Reus Systems in Orange, CA. They have a complete stealth system for BMW's. Well I went to check them out and their system is awesome. Once I heard it I got it. Great thing about their systems are that they come with a lifetime warranty. When my friends got in the car and I turned the system on they didn't even know where the speakers were. I suggest that you check them out. www.reusaudio.com Ask for Rick.
	Appreciate 0 Quote

03-09-2007, 01:54 PM	#7
DrewBert Lieutenant 152 Rep 567 Posts Drives: 2020 BMW M8 Gran Coupe Comp Join Date: Jan 2007 Location: Regina,Sk, Canada iTrader: (1)	wow that sounds like a infomercial lol, do you have a pictures of this install?
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03-09-2007, 01:56 PM	#8
ChadE Major 110 Rep 1,426 Posts Drives: 2008 328i Join Date: Feb 2007 Location: Davidson NC iTrader: (0)	Spam
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03-09-2007, 03:26 PM	#9
ReusAudio328i Enlisted Member 1 Rep 30 Posts Drives: 2007 BMW 328i Join Date: Jan 2007 Location: Southern California iTrader: (0)	I have no affiliation with them whatsoever and second, this is not spam. Pictures will not show you anything since it is all stealth. By the way, you can go onto any forum board whether its M5Board, Merecedes Benz, Lamborghini, Porsche, and all will tell you that have their system how good it is. You do not have to take my word for it.
	Appreciate 0 Quote

03-10-2007, 12:01 AM	#10
lvwirelessguy Captain 30 Rep 955 Posts Drives: 2011 E92 M3, 2012 Golf TDI Join Date: Feb 2006 Location: 702 iTrader: (1) Garage List 2005 M3 [0.00]	Then why is your user name the same as their company name?
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03-10-2007, 04:11 AM	#11
SteanLV 249 Rep 2,856 Posts Drives: Liberty Walk M3 Join Date: Jan 2006 Location: Las Vegas, NV iTrader: (5)	lol good 1 __________________
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03-10-2007, 10:25 AM	#12
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	Oh this is getting funny now! The subs under the seats are TINY. I havent been able to take a good look at them yet, but from the space available under the seat and size of the grill and the LACK of bass in the E90, its probably a dedicated midrange driver 4-6 inches. Replacing them is a possibility. Besides all of the work to take out the seats, there is not that much room to push air and you will suffer from a lack of significant bottom end.
	Appreciate 0 Quote

03-12-2007, 11:45 AM	#15
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	I have read about the shallow mounts and they look promissing, but I am not sure about the amount of volume the undermount subs in the e90 have to move air. A well placed sub in the trunk with some kind of pass through to the cabin will provide the bump and bottom end that those will not be able to push because of lack of air. I am making another post as I got a response from MTX on the thunderform enclosure. They want people to email them so they can gauge interest. Please let them know!
	Appreciate 0 Quote

03-12-2007, 12:14 PM	#16
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	Are the underseat subs you speak of for the stock audio, or Logic 7? I dont see why replacing those with Pioneer or JL audio shallow mounts would be a bad idea. The bass will not be the same as it would be in an enclosure mounted in the trunk, but it would make use of the design that is already built in the car.
	Appreciate 0 Quote

03-12-2007, 02:05 PM	#18
Josh49 Major General 252 Rep 6,664 Posts Drives: E90 325xi Join Date: Jan 2006 Location: Boston, MA iTrader: (33)	http://www.e90post.com/forums/showpo...12&postcount=6 e90post member Jan's.. I think jmh if you have any more questions for him.. __________________ E90 325XI, MYSTIC BLUE ON BLACK/ALUM, STEP, NAV, PDC, CWP, XENON, SIRIUS, ALARM, MUD GUARDS, CLEARBRA, CHROME GRILLS AND TIPS, VALENTINE 1 (HARDWIRED), HO CERAMIC 40%, 161'S, REAR FOG MOD, LUX 4.0, BLACKLINES, OEM PEDALS, MTEC FOGS, GRUPPE-M REP INTAKE. 156'S AND RUBBER MATS FOR THE WINTER.
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03-12-2007, 02:12 PM	#19
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	If you have second thoughts about putting a box in the trunk, do you mean having a Qlogic type box floating around in the trunk? I dont want to do that either. The new 3 has storage box in the trunk which is more than adequate for a stealth sub installation. What is the abreviation you keep putting next to the speaker size: iirc?
	Appreciate 0 Quote

03-12-2007, 02:13 PM	#20
Josh49 Major General 252 Rep 6,664 Posts Drives: E90 325xi Join Date: Jan 2006 Location: Boston, MA iTrader: (33)	If I recall correctly. Please see the pics in the thread I just posted, I think it is what you are looking for.. __________________ E90 325XI, MYSTIC BLUE ON BLACK/ALUM, STEP, NAV, PDC, CWP, XENON, SIRIUS, ALARM, MUD GUARDS, CLEARBRA, CHROME GRILLS AND TIPS, VALENTINE 1 (HARDWIRED), HO CERAMIC 40%, 161'S, REAR FOG MOD, LUX 4.0, BLACKLINES, OEM PEDALS, MTEC FOGS, GRUPPE-M REP INTAKE. 156'S AND RUBBER MATS FOR THE WINTER.
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03-12-2007, 02:57 PM	#21
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	Yup the install on the attached pics is very nice, obviously a very classy shop. I will wait a bit until I hear more from the JL/MTX/BASsoundwerks side...
	Appreciate 0 Quote

03-12-2007, 03:08 PM	#22
boggysv Private First Class 8 Rep 188 Posts Drives: A4, but riding the bus for now Join Date: Jan 2007 Location: London, KL iTrader: (0)	nice setup. Is that thing in his coin box the sub level control? Does it mean he controls the volume just like how he normally does? Any reason why he opted for the audiocontrol instead of the JL cleansweep? JL recommends using their own volume knob with the cleansweep. It does a pretty cool job of auto calibrating the eq though. But using their remote would be a pita.
	Appreciate 0 Quote