how to wire 2 amps to a single dvc sub

I am running 2 Alpine M500's and an IDQ12V3.D2. The sub is 2ohm but I am thinking I may need the 4ohm version to get a 2Ohm load. How would I wire this for the 2ohm load? I have looked everywhere for a diagram on this but I can't seem to find it. I initially wasn't comfortable running 2 amps on one Sub but Image Dynamics said to give each coil it's own amp for optimal performance. Thank you for your help.

Thank you, this is how I have it setup, amp setting are matched as well. I'm guessing I just received a bad sub. Thank you very much for the response though, I just needed to hear from another source that I have it wired correctly.

Why do you think you've received a bad sub?  Are you certain that both VCs are in phase and do you have the hookup polarity matched?Support the12volt.com

I am certain the polarity is correct, I have triple checked and I also added an extra rca splitter to have both amps pulling from the same rca feed just to make sure they are pushing the same signal. I'm guessing that's what you mean by being in phase, but I'm not sure. If there is something else I can check before I go through the hassle of getting an exchange please let me know. Thanks again for the replies.

Again, what do you think is wrong?Support the12volt.com

I'm not sure, maybe a burnt VC? I'm not overly familiar with the internals of a speaker and as much as I read I'm still not getting my head around ohms law but I am pretty certain all my wiring is correct. So that leaves me with only one unknown... the condition of the sub internals. I will pull it all out and wire it up again just to make sure this afternoon but I can't think of anything I'm missing.

And you are thinking something is wrong because WHY?  Low output?  No output?  Nothing's working?  Please describe your problem.  Are both amps turning on?Support the12volt.com

There is no output and both amps are on. I just checked my rca's and all the wiring outside the box, I'll open it up and make sure the wires didn't some how come lose in the box later this afternoon.

Try playing only one amp at a time. If each amp plays individually, but you have no output when they are both on, one of the voice coils is wired out of phase. Or one amp is set to 0 and the other is set to 180. If of course the amp has a phase switch.