What do you mean by PA?
office building PA or Stage PA?
The 602V is designed to drive 70 volt speakers, for an office building
Or it will drive ONE pair of 8 ohm speakers, 550 watts per side, stereo
Or it will drive ONE 16 ohm load, in bridge mode, mono, 1100 watts
Load that is lower than 8 ohm stereo, or 16 ohm mono, is not allowed on this amplifier.