Gary,
You are SO right! As an “always active” box user these days, I want to protect my nice little powered 12″ 2-way speaker from getting slammed with some 20hz rumble or other “bad” influences. I called about this shortly after I got my QU-PAC and was told by tech support that while there was no true HPF, I could achieve the exact same results by setting a PEQ and adjusting the 31hz control on the graphic. Ummm, no way! Not sure where their EE degrees came from, but when I was studying for mine I learned why this would not be true. Do the math fellas! (Especially given that, according to the users guide, the GEQ’s are constant Q)
I sure would love to see this feature added!