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Old 01-13-2007, 11:41 PM   #1
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Default wiring my new subs

Hey gang, I got some new subs, and I'm gonna do my own box. I am gonna bridge my amp. What I need to know is, can I just run some short wires from the terminals of one sub to the other, and then have the wires going to the amp. Does that make even a little bit of sense?? Or will I have to run wires off both subs then to the amp?

Thanks for the help.

Tim
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Old 01-14-2007, 03:43 AM   #2
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Default wiring my subs

Sure you can wire the two subs together. I would also reccomend that when you build your box, dont seperate the two subs in different chambers since they are sharing the same amp. What kind of sub/amp set up are you running?
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Old 01-14-2007, 10:21 AM   #3
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Hey Brian, Thanks for the info. I sortof thought I could but I wanted to make sure before I did it.

I am running 2 Infinity Kappa Perfect 12'* off of a Rockford Fosgate 500a2. The amp is kinda star warsie looking.

I am only running one of the 12'* right now, I am just waiting for a nice enough day to build the box.

Thanks,

Tim
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Old 01-14-2007, 10:48 AM   #4
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The one and only time i wired 2 subs into one channel, it sounded VERY bad. Also remember, your stereo has a left channel and right channel. If you hook your subs up to just one channel, you're only going to get bass out of that one channel not both. It may work, but i don't think you'll be happy with the sound.
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Old 01-14-2007, 11:33 AM   #5
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Honestly, it all depends on how the amp is designed. If it was designed to be bridged, then there should not be any problems using it as a one-channel amp. However, I would consider NOT running any bass boosters and keep your gain at about 25% to start with, then work your way forward.
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Old 01-15-2007, 06:11 AM   #6
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Tim, let me make sure I got this straight. You are trying to basically run the wire from one sub to another and then, run wire from that sub to a two channel amp one channel positive and the other channels negative to bridge it correct? If so, then you should be fine. I got a bit confused from a post I read after I posted that said you were running to subs to only one of the channels of your amp. DONT DO THAT! It will blow your amp up. But anyway, if you are doing what I am assuming you are, I got an idea. Ya know how on the inside of a box, you run wire from your sub to the negative and positive plug on the side of the box? Well why not just run both wires seperate to that plug and then just run two wires from that plug to the amp? Get it? This will just cut down on the number of times you stop and start the flow of powre to your subs. PM me if you need any more input
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Old 01-15-2007, 01:02 PM   #7
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Bridging an amplifier requires a bridgable amp. I'm assuming you have one already. Also, when bridging an amp, you're taking away right and left channels, and creating one channel.

Wiring is all dependant on how you need to load the amp resistance wise. What are the specs of the amps and subs you are using?


http://mobile.jlaudio.com/support_pages.php?page_id=145
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Old 01-15-2007, 08:27 PM   #8
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Before you hook anything up, You need to first make sure what Ohm the voice coils are and how many on each sub.

If you have one 4ohm voice coil on each sub (only one set of terminals), then wiring them in parrallel, (Positive to Positive and negative to negative) will create a 2 Ohm resistance, and your amp will have to be able to handle that type of load.

If your subs have dual 4 ohm voice coils (two sets of terminals, one on each side), then wiring them in parrallel will give you a 1 Ohm resistance, which not many amps can handle this type of load. (mostly the upper end competition amps can), and if you hook it up that way, you wont have it for long!!.

Check out the woofer wiring wizard on Rockford Fosgates website and enter the info once you know for sure what voice coil configuration your subs have.


http://www.rockfordfosgate.com/rftech/woofer_wizard.asp
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Old 01-15-2007, 10:08 PM   #9
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The amp is bridgable, and I am going to run 2 4ohm subs.



Thanks,

Tim
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Old 01-16-2007, 06:44 PM   #10
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if you want to use two 4 ohm subwoofers on your amp you DO NOT want to bridge it. If you bridge the amp you are forced to either run the subs in series for a 8ohm load (very little power) or parallel for a 2 ohm load which is below what that amp will run stable at. Very few 2 channel amps are stable at 2ohm bridged, and your rockford is not rated to do so. Yeah, if you hook it up its going to play...and probably be pretty loud but you will either cook the subs due to extremely high distortion or damage the amp from overcurrent and/or extensive heat.
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