Thanks Kcarlie it is pretty cool. I didn't realize how fun this HT thing can really be.
Here's the best pic of the back panel I could do. The camera is on loan and isn't the best quality.


The sub came with a "quick set up sheet" and referenced this web page for the full manual
but it doesn't seem to be up and running yet.

In the quick sheet it does reference a couple of interesting things:

"The REMOTE setting is for operation with future Axiom remote controlled products that enables remote-control adjustment of subwoofer levels."

"USB: This is to be used for future software upgrades to the Digital Signal Processor inside your EP500 and EP600. You may also use the USB input to connect the accessory Axiom light to ease visibilty in making subwoofer adjustments or connections"

I thought this was quite funny. A sub woofer USB light.
At the very least is shows Axiom is thinking out side of the box or should I say sub.

Cheers, Jag