Fredk,

when i was looking for new amps, the Peavy amps were right up in my list along with the QSC.
i had one model of each make in my final choice and i bought the QSC because the Peavy had a too high HPF

it's after i had bought the QSC that a Peavy engineer told me he could alter the HPF to the frequency of my choice, but it was too late.