Stock Subwoofer Upgrade

gichoke · 03-26-2007, 10:09 PM

Has anyone upgraded the stock subwoofers (under the seat) by connecting them to an aftermarket amplifier? Any details on the quality of sound? Suggested power for the amplifier?

etik · 03-27-2007, 03:51 PM

I did just that, they cannot handle the upgraded power.

75W RMS. They burn...

I'm planning to replace them, still waiting for my order to be delivered. I will post by end of this week (I hope) my DIY on upgraded underseats subs

a burrito · 03-27-2007, 06:27 PM

Quote:

Originally Posted by etik

I did just that, they cannot handle the upgraded power.

75W RMS. They burn...

I'm planning to replace them, still waiting for my order to be delivered. I will post by end of this week (I hope) my DIY on upgraded underseats subs

hm....great idea. are they 6.5 inchers or 8inchers? do you know the depth on them at all?

ebanul · 03-27-2007, 06:30 PM

Quote:

Originally Posted by etik

I did just that, they cannot handle the upgraded power.

75W RMS. They burn...

I'm planning to replace them, still waiting for my order to be delivered. I will post by end of this week (I hope) my DIY on upgraded underseats subs

Make sure you unplug your battery before you unplug the seat or you will get an airbag warning that will need to be reset at the dealer.

gichoke · 03-27-2007, 07:15 PM

I have heard on other places on this forum that they are 8" and the Logic7 has 10". I heard from Bavarian Soundwerks that they are working on an upgrade. This would be a PITA DIY due to the seat removal. Does anyone have a FAQ on it? I would love to know if the cabint size is the same, to some degree, as the Logic7. That would mean we could replace them with Pioneer slim line 10" woofers...which would most likely sound amazing.

etik · 03-28-2007, 03:19 AM

Mine are 8", I have ordered PIONEER TS-SW841D to replace them. Still waiting on the delivery

About the seat removal, I believe it's should be quite easy. For the airbag warning I suppose that if I do not start the car without seat connected it should be no problem.

?? still some question today, I will know for sure when I will do the job, I hope by the end of this week.

gichoke · 03-28-2007, 08:16 AM

PIONEER TS-SW841D !? Wow, I did not see the 8" version anywhere on the Pioneer site when I looked. I expect they will sound amazing. Please let us know how it sounds, and if possible, take pics for a DIY. Im excited for you! Get them in!

BTW, do you have the non-Logic7 system? In the US the standard system is a 10 spkr including 2 subs under the seat.

Here is the link for those of you who want to know more:

ebanul · 03-28-2007, 08:58 AM

Quote:

Originally Posted by etik

About the seat removal, I believe it's should be quite easy. For the airbag warning I suppose that if I do not start the car without seat connected it should be no problem.

Not the case, you MUST unplug the battery or you will get the warning. Removing the seat is easy.

gichoke · 03-28-2007, 09:25 AM

Is there a thread on seat removal? I cannot find it. Also, does anyone have a part# for the bolts we need to replace when we put the seat back in?

ebanul · 03-28-2007, 10:19 AM

Quote:

Originally Posted by gichoke

Is there a thread on seat removal? I cannot find it. Also, does anyone have a part# for the bolts we need to replace when we put the seat back in?

I have removed the seat, it is easy and thier were no bolts that needed to be replaced.

RRGOO7 · 03-28-2007, 10:41 AM

Are you planning on just swapping the speakers or also adding an amp?

gIzzE · 03-28-2007, 11:31 AM

You need to replace the seat bolts with new ones, they only work properly one time, not saying I always do replace them but you should.

A couple of guys on the 1 series forum have replaced the underseat subs with the Pioneers, and reported great results.

I just put some Diamond Audio H641s speakers in on Monday night, I have a nice Genesis Profile Four Ultra amp on the way and will try and get that installed over the weekend, just thinking maybe I should order the Pioneer subs now and do it all at once.

gIzzE · 03-28-2007, 11:35 AM

I was also looking this one...

http://caraudiosecurity.com/shop/pro...s_id/6353.html

But not sure if it would fit??

gichoke · 03-28-2007, 11:39 AM

I plan on replacing the subs and hooking it up to a massive infinity amp I have new in box...perhaps I will replace the rears with components i have lying around...

RE the kenwood, i read on this forum that the std stereo has 8" subs and the logic 7 has 10"...not sure if the cabinet is different enough to make it impossible to use the 10 in a standard.

I just found these files on the E60 forum:

The cover plate might stick out 1/2" with the addition of the Pioneer subs as seen in the installation PDF from Pioneer.

etik · 03-28-2007, 12:01 PM

Quote:

Originally Posted by ebanul

Not the case, you MUST unplug the battery or you will get the warning. Removing the seat is easy.

Thanks for the TIP !

You can check the step 1 of my setup
here

The DIY if you wish to tap into the wires
here

Subs confirmed to be delivered on Friday

but I get my car remapped at kempower by Friday bad timing

hope to have fun this wk.

RRGOO7 · 03-28-2007, 12:41 PM

cannot wait for the results...let us know!

TonyLukes3 · 03-28-2007, 12:58 PM

I'm very interested in this as well

gIzzE · 03-28-2007, 01:23 PM

There was a thread on here wth a link to an italian forum http://www.bmwfaq.com/index.php I think it is??
Anyway, on that thread the guy had upgraded the system and had photos of the new subs in place.

But I can't fnd the thread again.

SoCal335i · 03-28-2007, 01:44 PM

Im still a bit confused, so my e92 with Logic 7 has a 6" , a 8" or a 10" woofer under the seats???

Prestige Audio · 03-28-2007, 02:36 PM

Standard system has 6" and Logic 7 has 8". We just did an E90 with a DLS r6.3 kit up front, so the 6.5" under the seats, the 2.5" mid in the door and the tweeter in the standard mirror pad location and it worked really well.

AM335 · 03-28-2007, 03:48 PM

Quote:

Originally Posted by Prestige Audio

Standard system has 6" and Logic 7 has 8". We just did an E90 with a DLS r6.3 kit up front, so the 6.5" under the seats, the 2.5" mid in the door and the tweeter in the standard mirror pad location and it worked really well.

Can you post pics please? Also did the 6.5" fit the sub location or did you fabricate a baffle in order to mount the 6.5"? Thanks.

gichoke · 03-28-2007, 06:44 PM

Man, now I am really confused! I wish we could get an official part#/description so we know exactly what size we are looking at! I thought that the stereos were different in the USA Vs. Europe. Can anyone confirm the size of the 10spkr standard sub Vs a Logic7 in the USA?

03-26-2007, 10:09 PM	#1
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	Stock Subwoofer Upgrade Has anyone upgraded the stock subwoofers (under the seat) by connecting them to an aftermarket amplifier? Any details on the quality of sound? Suggested power for the amplifier?
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03-27-2007, 03:51 PM	#2
etik Private First Class 20 Rep 136 Posts Drives: BMW 320D Join Date: Dec 2006 Location: Belgium iTrader: (0)	I did just that, they cannot handle the upgraded power. 75W RMS. They burn... I'm planning to replace them, still waiting for my order to be delivered. I will post by end of this week (I hope) my DIY on upgraded underseats subs
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03-27-2007, 07:15 PM	#5
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	I have heard on other places on this forum that they are 8" and the Logic7 has 10". I heard from Bavarian Soundwerks that they are working on an upgrade. This would be a PITA DIY due to the seat removal. Does anyone have a FAQ on it? I would love to know if the cabint size is the same, to some degree, as the Logic7. That would mean we could replace them with Pioneer slim line 10" woofers...which would most likely sound amazing. Last edited by gichoke; 03-28-2007 at 06:45 PM..
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03-28-2007, 03:19 AM	#6
etik Private First Class 20 Rep 136 Posts Drives: BMW 320D Join Date: Dec 2006 Location: Belgium iTrader: (0)	Mine are 8", I have ordered PIONEER TS-SW841D to replace them. Still waiting on the delivery About the seat removal, I believe it's should be quite easy. For the airbag warning I suppose that if I do not start the car without seat connected it should be no problem. ?? still some question today, I will know for sure when I will do the job, I hope by the end of this week.
	Appreciate 0 Quote

03-28-2007, 08:16 AM	#7
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	PIONEER TS-SW841D !? Wow, I did not see the 8" version anywhere on the Pioneer site when I looked. I expect they will sound amazing. Please let us know how it sounds, and if possible, take pics for a DIY. Im excited for you! Get them in! BTW, do you have the non-Logic7 system? In the US the standard system is a 10 spkr including 2 subs under the seat. Here is the link for those of you who want to know more:
	Appreciate 0 Quote

03-28-2007, 09:25 AM	#9
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	Is there a thread on seat removal? I cannot find it. Also, does anyone have a part# for the bolts we need to replace when we put the seat back in?
	Appreciate 0 Quote

03-28-2007, 10:41 AM	#11
RRGOO7 Colonel 360 Rep 2,451 Posts Drives: GTR Join Date: Dec 2006 Location: Miami FL iTrader: (13)	Are you planning on just swapping the speakers or also adding an amp?
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03-28-2007, 11:31 AM	#12
gIzzE Major General 363 Rep 5,984 Posts Drives: F11 + 911 C4 Join Date: Apr 2006 Location: Norfolk, UK. iTrader: (2)	You need to replace the seat bolts with new ones, they only work properly one time, not saying I always do replace them but you should. A couple of guys on the 1 series forum have replaced the underseat subs with the Pioneers, and reported great results. I just put some Diamond Audio H641s speakers in on Monday night, I have a nice Genesis Profile Four Ultra amp on the way and will try and get that installed over the weekend, just thinking maybe I should order the Pioneer subs now and do it all at once.
	Appreciate 0 Quote

03-28-2007, 11:35 AM	#13
gIzzE Major General 363 Rep 5,984 Posts Drives: F11 + 911 C4 Join Date: Apr 2006 Location: Norfolk, UK. iTrader: (2)	I was also looking this one... http://caraudiosecurity.com/shop/pro...s_id/6353.html But not sure if it would fit??
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03-28-2007, 12:41 PM	#16
RRGOO7 Colonel 360 Rep 2,451 Posts Drives: GTR Join Date: Dec 2006 Location: Miami FL iTrader: (13)	cannot wait for the results...let us know!
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03-28-2007, 12:58 PM	#17
TonyLukes3 First Lieutenant 19 Rep 346 Posts Drives: '02 Z3 3.0i Roadster Join Date: Mar 2007 Location: SW Florida iTrader: (0) Garage List 2007 328i [0.00]	I'm very interested in this as well __________________ ~ Sal ~ Arrivederci e92...
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03-28-2007, 01:23 PM	#18
gIzzE Major General 363 Rep 5,984 Posts Drives: F11 + 911 C4 Join Date: Apr 2006 Location: Norfolk, UK. iTrader: (2)	There was a thread on here wth a link to an italian forum http://www.bmwfaq.com/index.php I think it is?? Anyway, on that thread the guy had upgraded the system and had photos of the new subs in place. But I can't fnd the thread again.
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03-28-2007, 01:44 PM	#19
SoCal335i Banned 14 Rep 768 Posts Drives: 2007 E92-TT Jet Blk Coral Red Join Date: Jan 2007 Location: Cali iTrader: (2)	Im still a bit confused, so my e92 with Logic 7 has a 6" , a 8" or a 10" woofer under the seats???
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03-28-2007, 02:36 PM	#20
Prestige Audio New Member 0 Rep 21 Posts Drives: E92 325i Join Date: Jan 2007 Location: UK iTrader: (0)	Standard system has 6" and Logic 7 has 8". We just did an E90 with a DLS r6.3 kit up front, so the 6.5" under the seats, the 2.5" mid in the door and the tweeter in the standard mirror pad location and it worked really well.
	Appreciate 0 Quote

03-28-2007, 06:44 PM	#22
gichoke Captain Generale 17 Rep 78 Posts Drives: 18' M2 Join Date: Mar 2007 Location: Bay Area iTrader: (0)	Man, now I am really confused! I wish we could get an official part#/description so we know exactly what size we are looking at! I thought that the stereos were different in the USA Vs. Europe. Can anyone confirm the size of the 10spkr standard sub Vs a Logic7 in the USA?
	Appreciate 0 Quote