I am not looking for perfection
I know the dsp is limited with 10 bands vs others at 31
My question is. The Dayton only has an output of just under 3 volts before clipping
With proper amp gain setup is 3 volts enough to get good sound qualify
Yes
Your amps should produce the same sq from 0v-whatever max input is.
Remember when the volume is low RCA voltage is to. It's a low voltage analog signal.
High RCA voltage is good for resisting noise but that shouldn't be needed with good install techniques.