Wiring amp to 1 ohm?

Question

I have a monoblock amp, that is 1 ohm stable, it puts out approx. 810 watts rms at 1 ohm. I have 2 single voice coil 12" subs that put out 250 watts with a 4 ohm rating each. Well the amp has two seperate

(+) and 2 (-) terminals on it, but it is only a single channel amp. How would I wire them so the subs are at 1 ohm instead of 4 ohms each, unless it would automatically do that? The speaker terminals are arranged like this

+ - - +

Thanks for all the help

Answer 1

You cannot get a 1 ohm load with those subs. The 2 positive terminals are parallel hookups as are the two negative terminals. When you connect your two 4 ohm SVC subs, you'll get a 2 ohm load. The formula for TWO branches in parallel is product divided by sum, hence (4x4)/(4+4)= (16)/(8)=2 ohms. By the way, there is nothing wrong with running the setup you described, your amp will run cooler and I'm sure it will sound just great. :-)

Answer 2

Yes,it will switch inside the amp,if the subs are 2 ohms...But if you have dual voice coil 4 ohm subs you can get full power at 1 ohm.

See wire diagram with photo below.You can only hook up your setup 2 or 8 ohms.