Mark this as solved.
Peavey forum to the rescue:http://forums.peavey.com:8080/viewtopic.php?f=20&t=23639
Removing Cr13 increases crossover distortion. Boom.
Peavey forum to the rescue:http://forums.peavey.com:8080/viewtopic.php?f=20&t=23639
Removing Cr13 increases crossover distortion. Boom.