Audyssey with Subwoofer

[tracy]

Hey guys, I got my new Polks (woohoo!) today with the free subwoofer and I'm gonna run the Audyssey on my 705 tomorrow and I want make sure I have the settings on the sub correct before I start (seeing as its my first sub and I'm a newbie with subs). I am using a Y connector (if that matters). Do I want Double Bass or will that harm my speakers? If I understand it correctly I put the phase at zero, the crossover all the way up and the volume half way... correct? It's a PSW10, nothing fancy and it was free so I may as well use it until I can upgrade to something better. As for the speakers, I upgraded my Bose to Polk RTi A3's and a CSi A4. All in cherry and oh, are they sweet looking! Still gotta upgrade my Bose surrounds though, but I'm getting there! Thanks for any input!