There is a lot going on when you configure a 2.1 system. I have my main system in a small room that serves as my office, so I don't have to pressurize a large space, so I have it set up studio style with the Jamo Coronet IV's on the wall in front of me, with a Klipsch 10" sub (front firing, front ported) sub in the closet on that same wall. It sounds amazingly good,especially considering I can't get the speakers out into the room for proper imaging placement. I use a 80z crossover point from my old Denon 3802 receiver and this allows the Jamo's to coast from 80 on up.
I like how the Parasound P6 and HINT 6 allow you to overlap the crossover frequency if necessary. But I'd stay away from running the mains full range, you can get into time smear and comb filtering.
I am used to tuning a 4-way PA in unfamiliar buildings, so I've got some reps in doing this. I try and find the best spot for the sub by running pink noise through it in several locations to look for the smoothest response, (the newer DSP controlled subs will make this easier), and after finding the best spot, run pink through the main speakers at 80-90dBa, then unplug the mains and turn up the sub till it meets that specified SPL.
Then listen and tune to taste.
I like how the Parasound P6 and HINT 6 allow you to overlap the crossover frequency if necessary. But I'd stay away from running the mains full range, you can get into time smear and comb filtering.
I am used to tuning a 4-way PA in unfamiliar buildings, so I've got some reps in doing this. I try and find the best spot for the sub by running pink noise through it in several locations to look for the smoothest response, (the newer DSP controlled subs will make this easier), and after finding the best spot, run pink through the main speakers at 80-90dBa, then unplug the mains and turn up the sub till it meets that specified SPL.
Then listen and tune to taste.