Peavey PV23XO Mode D'emploi page 14

R E A R P A N E L
8 7 6 5
LOW SUM OUTPUT (5)
This function is non-operational in MONO Mode.
INPUT (Channel 2) (6)
This function is non-operational in MONO Mode.
MID OUTPUT (7)
This XLR male 3-pin connector provides a balanced output for the mid frequencies.
HIGH OUTPUT (8)
This XLR male 3-pin connector provides a balanced output for the high frequencies.