My 950/775 combo will arrive Friday. I have the Polk RT-55i for main, Polk CS-245 center, Polk FX-300i for surround and Paradigm PDR-10 Sub. Do I really need a SPL gauge to setup the speakers? Can't I just rely on the 950 tone adjustment? Can my sub keep up with the rest of the system having only 100 watt amp.

I currently have a Pioneer VSX-509S, will there be a big sound difference?

I feel like a new father waiting for a new baby...