I assume that your voltmeter was set to read a AC signal and not a DC signal right?
If so, then the RCA outputs on the Empeg should be reading about .7 volt in AC mode.

I tested DC first, and didn't get much. Then went to AC, and started getting readings fluctuating between .15 and .3, which is what I got from the Empeg, as well. I'll double check this before I do anything drastic.

That's a great explanation you gave, thanks!