Peavey XR8600D output phase issue...

[pecorporation]

Just wondered if anyone else has run across this...

Why does Peavey wire AMP 2 out of phase with AMP 1?

It shows in the schematic (see attached pic) and on the amp pc board that the BLUE output lead is wired straight to the ground pin of the 1/4_SPEAKON connector.

When the MAIN/MAIN power amp mode is selected, your audience hears an out-of-phase final production.

XR8600D.pdf

[nickb]

It looks like the inputs to the power amp are also inverted meaning the speakers are now in phase.

[pecorporation]

Wow. That one blew right by me, nickb. Thanks for the head check!

I'm gonna leave my embarrassment on the forum 