How do you run a 1 ohm load?

[85 Cutlass Brougham]

I think I know how to do this, but I want to be sure. I am looking to run a 1 ohm load into my amp running in bridged mono with 2 Dual Voice Coil subs that have 4 ohms per voice coil. I assume that all I have to do is run them all in parallel (all the + grouped together and all the -grouped together). Am I right, or is it a series connection? Sorry, but it's been a while and I have forgotten my Ohm's law!

 

[dougfather]

Here are 2 useful equations:

Parallel Resistance

1/R = 1/R1 + 1/R2

Where R1 and R2 are reistance values
R is the equivalent resistance in Parallel

If R1=R2, then R = R1/2


Series

R = R1 + R2

 

[n33no]

hope this help.

 

[85 Cutlass Brougham]

Thanks, that's how I thought it should be. I wound up putting it into a 2 ohm stereo configuration instead as the amp turned out not to be rated for a 1 ohm mono bridged setup. It's only rated at 300 watts, but it is amazing just how loud it is! It's an Alpine V12 from 1999, but it seems to be perfectly matched to the older subs I am running.

 

[garyl24]

your amp will be at least 4ohm stable if bridged (more than likely 2ohm stable but i wouldnt push it). so why not wire the 2 coils per sub in series (which will give you 8 ohms per sub) and then wire them in parallel and that will give you a 4ohm load and your amp will safely run that.