Subwoofer settings

friggy

I have a Jensen JS1000 sub, it's a 8" 100 watt sub.....okay when you're done laughing I have a few questions. 1st off my system consists of a Marantz 6007 receiver, Polk RTi10 towers, CSi3 center, Polk RTi6's as surrounds, and the before mentioned sub. Also I am looking at new subs now. But until I get a new sub I still need to use the 1 I have. My question is the sub has 3 adjustments on back; level, crossover, and a phase switch. The crossover and level I understand but what should the phase switch be set at and what does it do? The switch only has 2 options 0 or 180.
Thanks for any help.

goofyGAguy

Sit in your preferred listening position. Play a CD with a steady deep bass line. Have a friend flip the phase switch back and forth. The correct position is the one that yields the most bass, simple as that. If you can't tell a difference, leave it at 0.

friggy

Ok thanks I'll give it a try. I tried this by myself but didn't to listen while someone operates the switch.
Thanks Ken

steveinaz

Usually if your sub is on the same "plane" as your main speakers, phase should be at 0 degrees. But GAGuy is right on varifying. Phase adjustment basically "synchronizes" the subs woofer movement with the main speakers woofer movement. Phase will sometimes have to be adjusted from 0 when your sub is shooting perpendicular into the room w/respect to your mains, OR when your sub is in the opposite (across the room) corner.