Polarity Invertng Rogue 66 W Bryston 4BST

I just received my new Rogue 66 Magnum preamp with line stage and remote. At first I wasn't sure what to think. The sound was more musical and full, but I felt I was missing detail. I wasn't completely surprised at this, but a little disapointed. After dinner I listend for an extended time, and it seems that I am now hearing much of the detail I feared was lost. Can anyone share their experienxe with the break in period of this preamp? Also it mentions inverted polarity. I would like to know if anyone else has fliped the speaker cables or just left this alone. I have this connected to a Bryston 4BST Amp. The rest of my setup is as follows. PSB Stratus Gold speakers, MSB DAC with HDCD,Cambridge Audio D300 cd, kimber 8tc biwire speaker, and Hero interconnects.
Any suggestions or info would be appreciated.
Thanks,
Alan