Thanks for the reply.
Not sure exactly what you mean.
The sub has 2 switches: Phase and Crossover (LFE vs. variable). 2 knobs: Level and LPF (which doesn't do anything with LFE). 2 plugs: Left and Right, right acting as LFE in, which is where I have my coax.
My Martin Logan Dynamo 500 subwoofer has been acting up for a while, and I'm at the point that I need to find a solution. I purchased it from Best Buy in August 2012. Since then I've replaced every other piece in my setup (new receiver, speakers, Blu-Ray player, etc). Also, I recently...