How should I hook this up without blowing the sub?

**Nero.Jacinth** · 05-02-2007, 08:05 PM

I have a Rockford Fosgate P3001 amp and a RF single voice coil P1. The amp puts out 300x1 at 2 ohms and 150x1 at 4 ohms (really a little bit more, but this is what its rated at). The sub is a 4 ohm single voice coil that handles 150 RMS.
The amp has two connections (even though its a mono amp), if you hook up two subs to the two connections it connects them as 4 ohm loads, and if you connect just one sub to one connection it puts it at 2 ohms. My question is how do I hook it up without blowing the sub? Thanks ahead of time for any help.

**White Rascal** · 05-03-2007, 03:25 AM

The two different outputs on the amp do NOT determine whether the load is 4ohms or 2 ohms. If you hook up two 2 ohm subs to each output the combined load will be 1 ohm and not 4. If you connect a single 8 ohm sub to only one of the two outputs the amp will see that 8 ohms and not 2.

You have a sub with a single 4 ohm voice coil so connect it to one set of outputs on the amp and be done with it.

**mpunklil** · 05-07-2007, 01:23 PM

Originally Posted by White Rascal

The two different outputs on the amp do NOT determine whether the load is 4ohms or 2 ohms. If you hook up two 2 ohm subs to each output the combined load will be 1 ohm and not 4. If you connect a single 8 ohm sub to only one of the two outputs the amp will see that 8 ohms and not 2.

You have a sub with a single 4 ohm voice coil so connect it to one set of outputs on the amp and be done with it.

I agree. The second set on the amp is just a jumper off the first set. They are essentially exactly the same. Just + to +, - to -. Simple enough