Subwoofer Phase


Can somone explain the phase control on a subwoofer.
How dose it work?
how do you know all your speakers are in time?
What do the numbers mean on the control knob?

I am just trying to learn about how to set this particular control. I would appreciate any help in this matter.

Thank You

Russ
russb
The degree of cancellation is dependent on the amount of bass your main speakers put out. If you have small drivers in your main speakers or have the bass rolled off, you may not be able to hear much if any difference in phase.
Hi Rwwear,

Thanks for bringing up that very important point, mini-monitors and a subwoofer would be a perfect example.
Some subwoofers have a remote control for setting phase while at the seated position :)
Another great use for a spectrum analyser! Play the white noise signal and mess around with the phase until you get a deep sharp notch at the SW crossover frequency. Then set the phase 180 degrees from this setting.