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Mounting Crossovers 

 

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 Post subject: Mounting Crossovers
Posted: Mon Jun 20, 2005 9:48 pm 
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Hey guys just installing my new amps and subs and decided to clean up my system a little.
Just wondering where people have mounted there crossovers for the front splits in an EL.

Also on my cross overs i have a pin that i can change from:
0dB, -3dB, -6dB
Just wondering what this does and what i should have it on.
Thanks
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Posted: Mon Jun 20, 2005 10:00 pm 
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That pin is used to reduce the output level of the tweeter. I've got mine on -3db personally, but your best off trying it out and seeing were it suits you as everyuones tastes are different and your systems different to mine.

I made brackets using an old licence plate to mount my crossovers between the window (when it is wound down) and the door - outside of it.

 

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Posted: Mon Jun 20, 2005 10:08 pm 
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i just stuck mine to th inside of the door with double sided tape
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Posted: Mon Jun 20, 2005 10:23 pm 
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There are quite a few options

- In the door
- Under the floor on passanger side
- Behind the headunit (depending on the size)
- Underneath the centre console

<IMG SRC="http://pic14.picturetrail.com/VOL555/2287184/7149236/91281633.jpg">

 

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Posted: Tue Jun 21, 2005 2:18 am 
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thanks for that, i might go with under the console or passenger footwell.

Also just a few quick questions;
Should i run the Ground wire from the amps back to the battery or just ground it to frame somewhere in the boot.

Also Alpine reconmend using 4 or 8 gauge wiring for the subs and amp. However on the subs sometimes you have to connect two wires into the one terminal. So what do i do? use a lesser gauge wiring or is there a connector around that i could use?

I have attached a picture to help show what i am trying to explain

thanks again

 

 

Attachments:
subs.JPG
subs.JPG [ 22.42 KiB | Viewed 38 times ]
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Posted: Tue Jun 21, 2005 2:38 am 
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8 gauge speaker cable from the amp to the sub? didn't know they made it that big.

I'd say to use 8 gauge power cable to the amp. as forgrounding if it's not a huge powered amp should be fine to ground to chais. just check that your battery ground is all good and that aswell and you should be fine.

 

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Posted: Tue Jun 21, 2005 9:44 am 
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A number of SPL competitors use 8 gauge connections to subs as they are providing subs with 3,000 - 6,000rms.

In most instances it is not needed. I would just use a good quality 12 gauge speaker cable and the Alpine terminals whould be large enough to accept 2 x runs of that.


The 0, -3, -6 db refers to tweeter attenuation in relation to the woofer.

It is a personal preference, and normally the higher the speaker is in the car the more you may want attenuation (i.e. in the A-pillars or dash may require attenmuation) in the kickpannels may not.

 

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Posted: Tue Jun 21, 2005 9:58 am 
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hey i am looking at mounting my crossovers in the boot, is that too far from the door speakers? do i hve to keep the wiring the same length for tweeter and woofer??

 

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Posted: Tue Jun 21, 2005 10:02 am 
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bentfairmont wrote:
hey i am looking at mounting my crossovers in the boot, is that too far from the door speakers? do i hve to keep the wiring the same length for tweeter and woofer??


No thats fine, i had mine in the boot last year. Exact wire length wont matter just run out what you need.

 

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