My Amp is Perverse (help?)

[idiot 10+ year member]

I’m having a very strange problem with my sub amp (Avionixx 1200.2). It’s refusing to send out power on the channel through which my sub is connected. There are three speaker outputs: Right, Left, and Bridged. Whenever I connect my cables to the Bridged output, my DMM registers no current passing to the wire. But one or both of the other, unused outputs will register a signal. I restarted my car and checked my power/ground/fuses; all were fine. The amp never runs into protection mode; the green light is always on.

So I changed my wiring and hooked the sub up to the Right output. The same thing happened, with the Right channel suddenly passing no signal, while some combination of the Bridged and Left outputs (either one or both, that is), registers a signal. No matter how I connect my wires, a signal never passes through the channel I want, while current does register on one or both of the other two output paths. It’s driving me absolutely insane. Does anyone have any thoughts?

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