I had a demo last year at sevenoaks of a B&W sub that no one bothered to set up properly, despite giving them my speakers in the morning
Anyway, i was shocked that i could tell the direction of the sub and was aware of the thing farting away in the corner. I want to avoid that at all costs.
I was only thinking of the eggs for the rears though mark, thats why ive gone for the Yamaha processor as it means i can keep my stereo fronts and carry on using them with my integrated.