Blown underseat woofer? Wiring clarification

Zoltar · 08-16-2014, 11:16 AM

Hi,

it seems that my passenger side subwoofer is dead and I just hope it wasn't me who did it.

Starting point was a 2011 E91 with base stereo, Business HU. It was replaced with a Professional HU with built-in USB/Bluetooth. Works perfect.

Then I replaced the front speakers with Helix Match component sets which are advertised as plug an play, but even their own manual says to cut the original speaker connector...
Anyway, it works and sounds much better, but this was the first time when I put the balance total left or right and noticed that I didn't have bass on the right side. Left channel is OK.

Now I don't know if it was like that before or it was something that I did and killed the sub. I mean it was only connecting two cables.

- Could I have screwed it up? How?
The car is still under warranty and If I take it back to the dealer I don't want to go into an argument whether it was me or not.
- Am I correct that the underseat/door speakers parallel connected and the split is at the under seat subwoofer connector? This would indicate that cabling is OK, it is clearly a dead subwoofer.

My long term plan is to upgrade everything, but meanwhile if it is under warranty I want to replace it.

Btw, how can I pause/stop or mute music on the professional HU?

ptpending · 08-16-2014, 04:43 PM

some LCI cars with base stereo may only have one woofer, under drivers seat
so it is better to check is there sub under passenger seat

6spdcoupe · 08-17-2014, 01:09 AM

Quote:

Originally Posted by ptpending

some LCI cars with base stereo may only have one woofer, under drivers seat
so it is better to check is there sub under passenger seat

What ?!?!?!

6spdcoupe · 08-17-2014, 01:11 AM

To the OP .. There isn't much you could have done 'wrong' if you only did speakers and were only in the door. If still under warranty, I would suggest having the speaker checked.
Or if you feel confident to check the connections, they are easy - pull up the door sill and seat, remove the grill and check the driver that you believe is not playing.

ptpending · 08-17-2014, 05:11 AM

Quote:

Originally Posted by 6spdcoupe

What ?!?!?!

topicstarter is from europe
in europe it is possible configuration

Zoltar · 08-18-2014, 03:37 AM

Quote:

Or if you feel confident to check the connections, they are easy - pull up the door sill and seat, remove the grill and check the driver that you believe is not playing.

I am confident but lazy

Actually, I couldn't find my torx 50 bit to remove teh the seat, but I buy one today, because I wannna check the speaker now.

Zoltar · 08-23-2014, 06:45 AM

Quote:

Originally Posted by ptpending

some LCI cars with base stereo may only have one woofer, under drivers seat
so it is better to check is there sub under passenger seat

Finally I had time, but I am not happy: there is no subwoofer under the passenger seat, only a dummy.

Here:
Name: P1.jpg
Views: 294
Size: 560.4 KB

I am getting back to the dealer to find out what's going on.

ptpending · 08-23-2014, 07:59 AM

you do not need to go to dealer, you can get such one from ebay for a 20-30 eur

Zoltar · 08-23-2014, 10:23 AM

Quote:

Originally Posted by ptpending

you do not need to go to dealer, you can get such one from ebay for a 20-30 eur

I know, but I wanna find out why this car had only 5 speakers, when it was advertised with 6 speakers. I should have checked if there's wire going there or it's missing too, but I was pissed.

taibanl · 08-23-2014, 05:39 PM

Wow - that picture is truly miserable. Cost cutting to a new low!

Zoltar · 08-25-2014, 03:14 AM

Quote:

Originally Posted by taibanl

Wow - that picture is truly miserable. Cost cutting to a new low!

yep, how can they be that cheap, especially in Switzerland.

08-16-2014, 11:16 AM	#1
Zoltar New Member 0 Rep 5 Posts Drives: 2011 E91 325i Join Date: Aug 2014 Location: CH iTrader: (0)	Blown underseat woofer? Wiring clarification Hi, it seems that my passenger side subwoofer is dead and I just hope it wasn't me who did it. Starting point was a 2011 E91 with base stereo, Business HU. It was replaced with a Professional HU with built-in USB/Bluetooth. Works perfect. Then I replaced the front speakers with Helix Match component sets which are advertised as plug an play, but even their own manual says to cut the original speaker connector... Anyway, it works and sounds much better, but this was the first time when I put the balance total left or right and noticed that I didn't have bass on the right side. Left channel is OK. Now I don't know if it was like that before or it was something that I did and killed the sub. I mean it was only connecting two cables. - Could I have screwed it up? How? The car is still under warranty and If I take it back to the dealer I don't want to go into an argument whether it was me or not. - Am I correct that the underseat/door speakers parallel connected and the split is at the under seat subwoofer connector? This would indicate that cabling is OK, it is clearly a dead subwoofer. My long term plan is to upgrade everything, but meanwhile if it is under warranty I want to replace it. Btw, how can I pause/stop or mute music on the professional HU?
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08-16-2014, 04:43 PM	#2
ptpending Brigadier General 616 Rep 3,153 Posts Drives: e81 Join Date: Dec 2013 Location: Poland iTrader: (1)	some LCI cars with base stereo may only have one woofer, under drivers seat so it is better to check is there sub under passenger seat __________________ E81 2007 130i 6cylinder Montego blue Retrofits: Harman Kardon, High-beam assistant, Removable tow hitch. Auto-dim folding exterior mirrors. Lumbar support. Perfomance Brakes.
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08-17-2014, 01:11 AM	#4
6spdcoupe tends to get irritable 205 Rep 800 Posts Drives: 21 M5C,18 M550,14 F15 Join Date: Nov 2009 Location: Central Jersey iTrader: (2)	To the OP .. There isn't much you could have done 'wrong' if you only did speakers and were only in the door. If still under warranty, I would suggest having the speaker checked. Or if you feel confident to check the connections, they are easy - pull up the door sill and seat, remove the grill and check the driver that you believe is not playing. __________________ AC Schnitzer/Eibach/M Performance/RaceChip/Compustar/Drone/BimmerTech/FireTV/Helix/Dynaudio/Micro-Precision/Jehnert/Audiomobile
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08-23-2014, 07:59 AM	#8
ptpending Brigadier General 616 Rep 3,153 Posts Drives: e81 Join Date: Dec 2013 Location: Poland iTrader: (1)	you do not need to go to dealer, you can get such one from ebay for a 20-30 eur __________________ E81 2007 130i 6cylinder Montego blue Retrofits: Harman Kardon, High-beam assistant, Removable tow hitch. Auto-dim folding exterior mirrors. Lumbar support. Perfomance Brakes.
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08-23-2014, 05:39 PM	#10
taibanl Brigadier General 285 Rep 4,116 Posts Drives: BMW Join Date: Sep 2010 Location: NA iTrader: (4)	Wow - that picture is truly miserable. Cost cutting to a new low!
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