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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > DIY: Under seats sub upgrade



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      09-24-2007, 09:41 AM   #133
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Hoping to see good results etik
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      09-29-2007, 05:42 AM   #134
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Some pics of my upgrade:

































Regards from Spain
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      09-29-2007, 08:29 AM   #135
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Quote:
Originally Posted by pilsener View Post
Some pics of my upgrade:
Regards from Spain
Thanks for the pics, it looks like you went with JLA 8w0.......was there some limiting factor for using these as opposed to 8w1v2? The 8w1v2 are designed for smaller enclosures and that was what I was thinking of trying and didn't know if you had some factors that limited your decision to the 8w0.....Thanks for any information you can share
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      09-29-2007, 01:24 PM   #136
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Quote:
Originally Posted by wrh3 View Post
Thanks for the pics, it looks like you went with JLA 8w0.......was there some limiting factor for using these as opposed to 8w1v2? The 8w1v2 are designed for smaller enclosures and that was what I was thinking of trying and didn't know if you had some factors that limited your decision to the 8w0.....Thanks for any information you can share
They are really 6W0, the bass now aren´t the most louders but they are much better than oem.

I don't know the 8W1V2 but I'm going to visit the web of JL Audio.Thanks for the information.

See you.
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      09-30-2007, 10:22 AM   #137
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Quote:
Originally Posted by pilsener View Post
They are really 6W0, the bass now aren´t the most louders but they are much better than oem.

I don't know the 8W1V2 but I'm going to visit the web of JL Audio.Thanks for the information.

See you.
Qué pasa tío, exportando tus conociemientos?
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      09-30-2007, 10:39 AM   #138
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Quote:
Originally Posted by scampos1984 View Post
Qué pasa tío, exportando tus conociemientos?
Hola, Scampos1984

Pues si, aquí hablando con el personal a ver si hacemos algo bonito y con mejor sonido q el equipo original.

Nos vemos en el faq.

Saludos
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      10-01-2007, 02:09 PM   #139
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Eagerly awaiting the results once all is hooked up. I'm glad that you were able to get the SWS-8 subs in there with no fabrication required!

Quote:
Originally Posted by etik View Post
They will be driven by an Audiobahn A4075HCT. That's to say that I could get 300W RMS max to each sub...

Thanks Technic from your feedback ! I was a bit concern about the sound, I have heard the Pioneer playing and I was impressed, I was a bit afraid with the SWS result... they does not 'look' for an absolutly non audio specialist (me) as good as the Pioneer, but then that is only a look and feel perception...

Probably I would be able to finish the setup by mid next week.
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      10-01-2007, 04:18 PM   #140
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I'm still fighting with my schedule and the shop that has to deliver me the last hardware piece to finish the setup :sad0147:
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      10-02-2007, 04:35 AM   #141
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Hi Etik, could you let me know where you buy those subwoofers?. Is it possible to buy it by Internet in Europe?. Thank you.
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      10-02-2007, 10:47 AM   #142
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I bought it from car hifi shop where I live. They must be available on internet. did you checked on ebay ? the ref is Earthquake SWS-8.

http://www.r-m-s.be/ This guy give great support and ship but not sure about Spain ?
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      10-02-2007, 10:55 AM   #143
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Yep, here is the ebay page from the same vendor

http://stores.befr.ebay.be/autosoundsystem

He ships worldwide.
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      10-04-2007, 10:18 AM   #144
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very interested to see results of both etik's setup, and if someone makes the JL 8W1V2 fit...
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      10-04-2007, 10:35 AM   #145
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Tomorrow 1:30PM, I finally get it installed ! I will post pictures and results
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      10-04-2007, 12:11 PM   #146
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I have found a soundstore in Madrid: http://www.procarsound.es/

I'm going to wait for your impression of it

Last edited by jcurbina; 10-05-2007 at 04:48 AM..
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      10-06-2007, 08:19 AM   #147
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Finally

The SWS are direct swap for oem speakers, they fit with no modif to oem enclosure.

Sound great, still have to go back to shop for amp fine tuning by next week.
My amp is not so easy to setup

http://www.e90post.com/forums/showthread.php?t=48617

And the sound tweaking specialist is currently on holiday...

But the SWS sounds very good, even better in 1 week time





So the final setup as follow.

JL CL441DSP to clean up the signal from the head unit
Oem amplifier replaced with AudioBahn A4075HCT
Oem speakers replaced by Focal 100KP front / back bridged to one amp channel.
Oem subs replaced by SWS-8 bridged to second amp channel.
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      10-06-2007, 12:26 PM   #148
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Sweet! good job etik i've been following this thread for quite awhile now. Any ways, i too bought 2 earthquake sws' and will install these once my car comes (hopefully by nov). one question though:

1. I can buy a mono-amp to power the 2 subs right? I dont need to replace the oem one? Meaning i'll still have the oem amp and the new mono amp...im looking into this http://www.circuitcity.com/ssm/MTX-3...oductDetail.do. This will do to power the 2 subs right?
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      10-06-2007, 02:44 PM   #149
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Quote:
Originally Posted by LaYzEe View Post
Sweet! good job etik i've been following this thread for quite awhile now. Any ways, i too bought 2 earthquake sws' and will install these once my car comes (hopefully by nov). one question though:

1. I can buy a mono-amp to power the 2 subs right? I dont need to replace the oem one? Meaning i'll still have the oem amp and the new mono amp...im looking into this http://www.circuitcity.com/ssm/MTX-3...oductDetail.do. This will do to power the 2 subs right?
Yes, you could do that as long as you use the OEM subs outputs as the aftermarket amp inputs.

The Alpine MRP-F450 works great with those SWS-8 also; I got a pair of SWS-8 -in 2 ohms configuration- driven by that amp, 200W rms each.
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      10-06-2007, 03:05 PM   #150
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^^^cool, thanks for the input. ok, one more question...whats a good gauge wire kit out there now? it's been like 5 years since i last installed a sub/amp so im not sure if they have better wire kits now...hehe
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      10-06-2007, 03:41 PM   #151
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Quote:
Originally Posted by LaYzEe View Post
^^^cool, thanks for the input. ok, one more question...whats a good gauge wire kit out there now? it's been like 5 years since i last installed a sub/amp so im not sure if they have better wire kits now...hehe
Any quality-brand (Monster, Streetwires) amp kit will do, just follow this link for wire gauge sizes...

http://www.the12volt.com/wiring/recwirsz.asp ...
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      10-12-2007, 06:50 AM   #152
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Hi Etik,

Tell us about the sensations with the new subs
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      10-12-2007, 10:38 AM   #153
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Quote:
Originally Posted by pilsener View Post
Hi Etik,

Tell us about the sensations with the new subs
I'm in a bad mood today... car just back for BMW dealer for USB retrofit... they installed a 'classic' ipod interface... they gonna redo the job but I've to wait for 3weeks to my new appointment...

I love the new sound, it's not too loud like a big sub in the trunk, actually it makes you fell the bass surounds you or even comes from the door speakers... of course if you turn it louder its time for a nice butt massage

Still have to go back to
- Hifi shop for sub fine tuning
- BMW so they fit the USB interface
- Kempower so they redo ECU tuning as BMW reflashed the whole car including ECU

Everytime I touch something around that car, I takes me weeks to get it right... :sad0147:
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      10-12-2007, 10:46 AM   #154
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Quote:
Originally Posted by etik View Post
I'm in a bad mood today... car just back for BMW dealer for USB retrofit... they installed a 'classic' ipod interface... they gonna redo the job but I've to wait for 3weeks to my new appointment...

I love the new sound, it's not too loud like a big sub in the trunk, actually it makes you fell the bass surounds you or even comes from the door speakers... of course if you turn it louder its time for a nice butt massage

Still have to go back to
- Hifi shop for sub fine tuning
- BMW so they fit the USB interface
- Kempower so they redo ECU tuning as BMW reflashed the whole car including ECU

Everytime I touch something around that car, I takes me weeks to get it right... :sad0147:
Glad that you like the SWS-8's... I don't see in your pictures any sealant around the sub frame. Did you put some? These subs are very picky with the air separation between the above and below the cone...
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