The first question to ask is why are the amps on the KW122 speakers
out? I'm not familiar with the Peaveys but a quick look online would leave me to believe
the QSCs would sound way better!
Also the KW122 are designed to be active
speakers - no easy way to power them from an external amp - and why would you when they
sound so good driven by their custom designed internal amp with all the processing and
protection you you want.
If you're having difficulty connecting up the QSCs
maybe give us a full breakdown of your set up, maybe we can help.