Uh oh - Dual 2 ohm - Urgent, please help!

[subarugeek]

Hey guys,

Im either stupid or my...well, maybe thats it.

I just purchased a Alpine 12" Type R Dual 2ohm voice coil sub. I also purchased a power acoustik 2 channel, 260watt per channel @ 2ohm amp. As my previous audio experience had led me to believe, if i were to wire one voice coil to one channel on the amp, there would be a 2 ohm impedence. I have read that if i do this there will only be a 1ohm impedence on the amp. Please help, understand that im trying to wire it for one voice coil per channel of amp. I'm lost and only have til tomorrow to change my orders.

Thank You Very Very Much!

-subarugeek-

Click to read more...

 

[revrider1 5,000+ posts]

It will run 1ohm per channel if you have DVC 2ohm subs...

 

[subarugeek]

Okay,

but if i were to bridge the two channels in to one, (the amp is rated at 560w mono RMS) then how would i wire the single sub to get the most out of it... what impedence would it be at... Im very very appreciative of your help!

Link to amp: (Ts980-2)

http://www.poweracoustik.com/pa2006/product_AUDIO_amp_plasm.htm

 

[forbidden 10+ year member]

Wire the sub in series to make it a single 4 ohm load. Bridge the amp to mono for maximum output into 4 ohm.

Connect voice coil 1 + to voice coil 2 - . This leaves one + and one - unused, these get connected to the respective bridged output terminals on the amp.

 

[subarugeek]

what would the output of the amp be with this setup? Would I just be better off going with a Dual 4 ohm Type R, and wiring each coil to one channel?

Thanks much!

 

[blue93corsica 10+ year member]

you'd be much better with a dual 4 ohm sub, running your current sub at 4 ohms will work but will prolly provide little output power into the sub and basically not achieving the results you'd expect

 

[KaeZoo 10+ year member]

you'd be much better with a dual 4 ohm sub, running your current sub at 4 ohms will work but will prolly provide little output power into the sub and basically not achieving the results you'd expect

Huh?

He has a 2-channel amp. It puts out its maximum power with a 2-ohm stereo load, or a 4-ohm bridged load. The dual 2-ohm voice coil subwoofer is perfect for it, provided it's only running one subwoofer.

Original poster: You can run each channel to a voice coil for a 2-ohm load, but I'd wire the sub in series for a 4-ohm load then bridge the amp. If you went with two subs, then you'd be better off with dual 4-ohm voice coils.

 

[skadude016 5,000+ posts]

ta da //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Prowler573 5,000+ posts]

you'd be much better with a dual 4 ohm sub, running your current sub at 4 ohms will work but will prolly provide little output power into the sub and basically not achieving the results you'd expect

What, exactly, causes you to come up with this particular recommendation considering the equipment the OP has listed to be running?

Huh?
He has a 2-channel amp. It puts out its maximum power with a 2-ohm stereo load, or a 4-ohm bridged load. The dual 2-ohm voice coil subwoofer is perfect for it, provided it's only running one subwoofer.

Correct!

Original poster: You can run each channel to a voice coil for a 2-ohm load, but I'd wire the sub in series for a 4-ohm load then bridge the amp.

Me too. Like so:

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[subarugeek]

so just so i can make sure im understanding this correctly. If i get a Dual 4ohm sub and wire each coil to one channel, the amp will output at 2ohms? Correct?

 

[forbidden 10+ year member]

Ok, I'm typing slow because you can't read fast.

DO NOT BUY A DUAL 4 OHM SUB. USE THE ONE YOU HAVE AND WIRE IT AS I DESCRIBED ORIGINALLY AND HOW IT IS CORRECTLY SHOWN IN DIAGRAM IN POST#9.

Not hard to understand at all. Consider these figures. Take a amp that is rated at 100w x 2 into 4 ohm or 400w x 1 into 4 ohm.

Your way is to take a 4ohm dvc sub, wire it one coil to each channel and get a total output power of 200watts. My way gets 400watts, do you want to do it my way or your way?

and no to your last question. You cannot magically make a 4 ohm sub wired one coil to each channel somehow turn into a 2 ohm per channel load.

 

[supa_c 5,000+ posts]

Uhhh...

wire 1 coil per channel

No, it wont equal 1ohm

 

[KaeZoo 10+ year member]

so just so i can make sure im understanding this correctly. If i get a Dual 4ohm sub and wire each coil to one channel, the amp will output at 2ohms? Correct?

How did you come up with that from anything anyone's posted on this thread?

No, not correct.

If you get a dual 4 OHM sub and wire one 4 OHM voice coil to each channel, then each channel will be wired to 4 OHMS.

If you keep your dual 2 OHM sub and wire one 2 OHM voice coil to each channel, then each channel will be wired to 2 OHMS.

If you keep your dual 2 ohm sub and wire it in series, as diagrammed more than once above, then connect it to your BRIDGED amp, the amp will be connected to 4 ohms. That is the ideal setup for your amp.