What's phase 0 degree - 180 degree?


Hi,
I have a JM Lab Electra Sub, and it has one switch which marks 0 degree and 180 degree. The switch sets at 0 degree when I brought it. However, the bass is less when I set the switch to 180 degree, and bass increases when at 0 degree. So, my question are
1. What's phase?
2. What's degree should I set on the sub so that it goes well with my main speakers?
3. How's important of phase? Does it matter if I set 0 or 180 degree?
Thank you very much
Dt
worldcup86

Showing 1 response by liguy

Tsouthworth is right on the money. My preamp inverts the signal so I must swap speaker leads minus to plus and plus to minus. With your setup I would only have to flip the switch.