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Unread 07-26-2013, 01:00 AM   #1
zRoxxah
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1996 ZJ 
 
Join Date: Apr 2013
Location: Tucson, Arizona
Posts: 166
Build my own "amp kit"

So I finally got the ZJ running again and while she was out of commission my new amp came.

It's a cheap Boss RIOT 1100M, I bought it just to have some bass while I'm upgrading. Anyways I'm using it to drive 2 12" Sony Xplod Subs that are 1200W. The part number escapes me.

I realized I bought a mono channel to drive two subs...so on the fly, can I connect the (+) wires on each sub to the (+) on the amp and then do the same for the (-) ones?

Also I don't really want to spend 100 bucks on an amp kit since my car was already wired for subs; all I need is a 4awg to run from the battery and for the ground, the fuse inside "the bubble", and speaker wire to connect the subs to the amp. Is this something I can pick up at let's say RadioShack or do I have to bite the bullet and shell out some bucks for the amp kit.

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Matte Black '96 ZJ 4.0
IRO 3.5" Benchmark Lift, Bilstein 5100's, 31x10.5x15 Westlake SL369 A/T's, Moog Super Trail Boss SS, KOR Rad Support, Chopped-up Front Bumper
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Unread 07-26-2013, 03:00 AM   #2
Holder350
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1995 XJ Cherokee 
 
Join Date: Oct 2007
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I would not.....connecting 2 speakers in parallel will effectively lower their ohm impedance.

Check your speakers coil values and use the formula

1/R total = 1/R1 + 1/R2

Check your total ohms against the amps rating.

As for the cable you can buy it by the foot at most electrical supply houses. I personally like using welding cable.
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Unread 07-26-2013, 06:52 AM   #3
bob6987
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1991 YJ Wrangler 
 
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the Boss RIOT 1100M is rated for 2 ohms, if the subs are each single voice coils at 4ohms each (only one + and - per speaker), wiring them in parallel will be ok.

if you run them in serial they will be at 8 ohms, the amp will run cooler but wont put out as much power.

you dont need to buy a kit. you can piece together the parts for the amp install, http://www.sonicelectronix.com/ has good prices.

If you are running power I would go 2 or 0 gauge... dont want to run new power cable if you upgrade or add an amp
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Unread 07-26-2013, 01:19 PM   #4
zRoxxah
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1996 ZJ 
 
Join Date: Apr 2013
Location: Tucson, Arizona
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Quote:
Originally Posted by bob6987 View Post
the Boss RIOT 1100M is rated for 2 ohms, if the subs are each single voice coils at 4ohms each (only one + and - per speaker), wiring them in parallel will be ok.

if you run them in serial they will be at 8 ohms, the amp will run cooler but wont put out as much power.

you dont need to buy a kit. you can piece together the parts for the amp install, http://www.sonicelectronix.com/ has good prices.

If you are running power I would go 2 or 0 gauge... dont want to run new power cable if you upgrade or add an amp
Thanks! I will wire them in parallel. I will go with 2awg, also where can I pick up one of those fuses in the plastic case?
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Matte Black '96 ZJ 4.0
IRO 3.5" Benchmark Lift, Bilstein 5100's, 31x10.5x15 Westlake SL369 A/T's, Moog Super Trail Boss SS, KOR Rad Support, Chopped-up Front Bumper
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Unread 07-26-2013, 10:29 PM   #5
bob6987
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1991 YJ Wrangler 
 
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Location: Colorado
Posts: 249
any place that sells car audio will have one. i like the ones that take a ANL fuse type, i have this one in my f250 Xscorpion Anl1010p
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