Installing subwoofer part 1 - rear trunk - BMW Luxury Touring Community
 
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post #1 of 8 Old Feb 21st, 2013, 9:55 am Thread Starter
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Arrow Installing subwoofer part 1 - rear trunk

This is part one of my subwoofer installation. Maybe it's a first? I've already installed a Clarion CMS1 aftermarket marine stereo with wired remote.

Part two will deal with mounting up the trunk to the bike, mounting the amplifier and doing the wiring.

Enjoy. http://youtu.be/m6FbmFflzdk
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post #2 of 8 Old Feb 21st, 2013, 11:32 am
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Re: Installing subwoofer part 1 - rear trunk

This is beyond awesome

Another member has added some 8" woofers, see this thread, post #3 by Vic. I'm not sure how he modified the speaker mounting etc and he never really explained but I did like Ron's suggested riding gear.

So how many watts are you going to drive that beast with? It has a massive magnet so just wondering if you are adding a cap or extra battery etc to run that beast as it looks like it will really draw the juice. You might be adding a little top-heaviness to the bike but who cares when you can shatter the windows of that car that just cut you off!

No matter what, you are going to be shaking the pavement with that setup, I can't wait for the follow-up. Make sure you post video including the resultant thumping

-Steve

2000 BMW K1200LT
2000 BMW R1200C
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post #3 of 8 Old Feb 21st, 2013, 11:37 am Thread Starter
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Re: Installing subwoofer part 1 - rear trunk

Oh ya, I'll add some more vids on the final install and performance. I think the amp is rated a solid 180wrms into 4ohms, 300wrms into 2ohms. It's a 4ohm woofer. I figured better not to load down the electrical system with a 2ohm sub. Might be adding a small capacitor, we'll see how it goes. I've got HID 35w already so a tiny bit power savings there.

It's not huge... what's going into my truck is 4kw, I had 1.8kw in my F150. Neither is crazy but both of them can flap the wipers an inch off the windshield. Look up Steve Meade for some entertainment on youtube.

That JBL sub is good bang for the buck, has decent Xmax cone travel and rated 250wrms.

Also the amp is class-D so very efficient. Not like class A/B which uses twice what it puts out.
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post #4 of 8 Old Feb 21st, 2013, 1:25 pm
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Re: Installing subwoofer part 1 - rear trunk

Awesome. Makes me want to guy buy another top case just to piss off rush hour drivers.
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post #5 of 8 Old Feb 21st, 2013, 3:15 pm
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Re: Installing subwoofer part 1 - rear trunk

Speaking of Xmax, I assume that there is enough room between the bottom of the trunk and the plastic platform below it, or did you have to add a spacer to allow for the woofer excursion?

-Steve

2000 BMW K1200LT
2000 BMW R1200C
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post #6 of 8 Old Feb 21st, 2013, 8:48 pm
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Re: Installing subwoofer part 1 - rear trunk

You might want to re-inforce the lid hinge-points while your at it..... the ABS plastic base where the hinges fix to can break through normal use, wear & tear (I'm about to repair mine in the next few weeks)... never mind vibrating the crap out of the poor thing with that install. Not my cup of tea (where would I lock my helmet?)... but another ounce of prevention might pay off.... 2c.

Chris
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2005 Dark Graphite Metallic K1200LT
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post #7 of 8 Old Feb 22nd, 2013, 11:17 am
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Re: Installing subwoofer part 1 - rear trunk

Quote:
Originally Posted by cws
...Not my cup of tea (where would I lock my helmet?)...
with one of these.

I have one of the Z-techniks on my LT and a generic brand on my R1200C (to be completely honest I prefer the mechanism of the generic one) and they are great! Helmets are secure and my top case is available for holding trip supplies - okay, honestly my LT bags have become a handy storage place for off-season riding gear and anything else motorcycle related since I never get to travel.

Of course if you still have the cable under your seat that works too, PO took mine off and that arrangement doesn't really thrill me anyway allowing the helmets to knock up against painted bits and what not.

-Steve

2000 BMW K1200LT
2000 BMW R1200C
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post #8 of 8 Old Feb 26th, 2013, 1:53 am Thread Starter
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Re: Installing subwoofer part 1 - rear trunk

I always wondered why BMW forgot to put some helmet holding tabs under the seat like Japanese bikes.

My helmet fits into the side bag as well and I have an XL brain.

Actually, I think the helmet fits over the sub motor. I'll try to post up a pic if I remember to take one. Still need to install some dynamat xtreme or equivalent.

Ya, my top case hinges were cracked but previous upper trunk took a beating on original PO's crash.
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