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wiring in a sub to amp question


maybe2fast
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just got an Audiobahn 12" sub dual voice coil

 

and I have a 2 chanel amp

 

this sub says it is a 3 OR 12 ohm resistance and my amp is a 4 or 2 ohm resistance.

 

I am just not sure on how to wire it up. I have been told to bridge the amp and sub.

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First is your sub a dual 4 ohm or dual 2 ohm?

 

Yes you will want to bridge the sub to the amp to get the max power rating of the amp (at whatever ohm that may be)

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sounds like his sub is a dual 6 ohm. id bridge the amp and wire the sub in parallel, to get a 3 ohm resitance to the amp. Make sure that your amp can handle 2 ohm when bridged so you dont overheat it.

 

[edit]

to bridge the amp you'll use the + on one speaker terminal and the - on the other, the amp should have sort of mark as to which ones to use.

 

for the sub, you'll want a postive wire to each of the voice coils, and a negative wire to both as well.

 

what is the amp? im sure someone here can help you decide whether or not it can handle 3 ohm's bridged. otherwise you'll have to wire it up to 12 ohm, which will draw from you total output wattage a bunch.

[/edit]

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okay I have a Crunch amp P2250. Here are the stats

2 channel

4 ohm load- 250Wx2

2 ohm load- 500Wx2

Mono bridged into 4 ohm- 1000Wx1

 

I just purchased this sub: http://www.sonicelectronix.com/item_4079.html

 

as you can see it has 8 wire hook ups on the sub.

 

I am not sure on how to hook it up and need some help.

 

microsoft paint diagrams would be fine. thank you

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i dont think that your amp will be able to hold a 3ohm in bridged mode (the manual says min of 4ohm) , but you could try it, but it'd be risky.

 

I'd say your best bet would to run it either at bridged at 12ohm, or just one channel per a coil at 6 ohm each. either way, your sub is going to be way uder powered. your talking ~300-350 RMS to the sub(if ratings are RMS). someone correct me if im wrong.

 

If possible though, try to find a new amp that will fit your system better. one that is 1000 RMS X 1 at 2ohm, or a 1 ohm stable amp if your looking to had more subs later.

 

dual 6 ohms, are generally made for 3 subwoofer systems, to acheive a 1 ohm resistance to the amp. That is a nice sub though.

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so at 2 ohm load- 500Wx2

 

I could just run two sets of wires to the sub 1 channel to one voice coil and the other channel to the other voice coil and it won't hurt the amp?

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i really am not sure if you can have both coils on different channels, ive never done that, maybe someone else here has experience with that. i dont want to give you the wrong advice.

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thats what the audiobahn site has, and i dont think 12 ohm will hurt the amp, its just to cut the output wattage way down, make sure u bridge the amp too, that give u more power. your amp is way underrated for this sub.

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I will let you know what happens. I was told also that the speaker can be treated like two speakers in respect to hooking it to the amp so maybe I will wire it like that

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well I wired it in parellel for a 3 ohm load, and the sub pounds! it is twice what I had and sound clear and crisp. the amp is a very nice amp. It has nice features and self diagnostics.

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