Subwoofer into e39
Subwoofer into e39
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Discussion

ChrisDT

Original Poster:

1,902 posts

221 months

Saturday 12th November 2011
quotequote all
Hi all, whilst cleaning the boot out of my E39 I noticed its all wired up for a subwoofer, my question for the panel is - Will enough sound transfer through to the cabin from say a low to midrange priced active subwoofer kit (Halfords have a 12" Fli system for £99) just to add some low end and bass to the pretty weak audio system in the car?

My car does not have a ski hatch either.

DennisCooper

1,340 posts

202 months

Saturday 12th November 2011
quotequote all
In short, no.

What would happen is that a subwoofer just placed in the boot area will pump bass and the 'vibrations' will be 'felt' in the cabin area. I'd say perhaps 75% of the bass output will swirl around in the boot, doing nothing more than shaking your bootlid and rattling your number plate, so very inefficient and not very musical at all.

It's very easy to cut a ski hatch if your car doesn't have one. By then having a custom enclosure made to hold one or two perhaps high quality 8,10 or 12 inch subwoofers to 'fire' through the ski hatch, 100% of the bass is transferred into the cabin where you sit. This is a very efficent way to add bass to an E39 and other similar BMW's. Practically you wouldn't need such a powerful RMS output amplifier either, less strain and current drain on the car's electrical system.

Cheers, Dennis!

ChrisDT

Original Poster:

1,902 posts

221 months

Saturday 12th November 2011
quotequote all
Thats what I was thinking - might look into making a small enclosure and then maybe cut the hatch into the car, can't be doing with all the rattles etc that sounds awful.

Might be more hassle than i would gain but if i get bored one afternoon I might have a play with it.

Thanks for the reply

ooral

167 posts

253 months

Sunday 13th November 2011
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Silverdaz said:
I have a 12inch sub in my boot with no ski hatch and it genarates plenty of bass inside the cab.
E46 with the same for me, pretty good and no undue rattles....

Total loss

2,138 posts

258 months

Sunday 13th November 2011
quotequote all
A subwoofer was a factory option , fitted beneath the rear parcel shelf of saloons

MarkwG

5,950 posts

220 months

Sunday 13th November 2011
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Total loss said:
A subwoofer was a factory option , fitted beneath the rear parcel shelf of saloons
Yep, that's what mine has: no rattles, no ski hatch...

ChrisDT

Original Poster:

1,902 posts

221 months

Sunday 13th November 2011
quotequote all
Thats interesting, might have a look into that and maybe fitting a free air sub under the shelf with an external amp...