Absolute Phasing


I just purchased a B&K EX-442 Sonata Series amplifier and I am attempting to find if this amp is non-inverting or inverting. My search for the manual online was not successful. I am requesting assistance on this. Thanks. 
128x128joeradio
It matters if you have sub woofers attached to the same Pre Amp.
The main speakers could be potentially out of phase with the Subs.
It's a pretty conventional solid state amp, so I would be surprised if it inverted phase. That's an oldie but goodie.