Curtis, Based on your question, I just took a look at the 20-39 PCi manual. Iwas wrong in my initial statement (result of cursory review of the manual yesterday), The crossover switch sholu be set to "disabled", but the phase switch is still operative.
I've been indiscriminately turning the phase knob thinking it had no effect!! That means the solution might be simpler than I thought.
Yeah, I know about sub placement and the difference a few inches can make.
That's why I mentioned it. After all the time I spent getting it just right, I should never have moved it.
I'll add the phase knob to my little troubleshooting session tomorrow. Thanks for the tip.
