What does "sub phase mean"

[302yota 10+ year member]

alright, on my jensen uv8 hu, on the audio menu where i turn the sub on and off, it has more options to where to can change the sub phase from 0* to 180*, and another option that has somethin to do with DRC or somethin like that...does anybody no what any of this means.

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[dman4486 5,000+ posts]

the 0 or 180 phase.....0 means when the rest of the speakers will push out, the sub will push out.....180 is reversed, and this is used with an invert mounted sub

 

[302yota 10+ year member]

so, i should keep it on 0, seein as how my subs are not inverted, right...

 

[dman4486 5,000+ posts]

so, i should keep it on 0, seein as how my subs are not inverted, right...

exactly