Welcome to the forum, Ron!

I guess one piece of advice is that if your Sonosub does not have a built in crossover, do not use the auto calibration.

Also, make sure you have a cold beverage to keep you cool while you set it up and even more for listening.

EDIT: Didn't realize you said 950. I click on the "new posts" link instead of the categories so that is why I didn't notice at first. Enjoy the 950 and ignore the auto setup feature since the 950 doesn't have one.