Tuning Questions... help!

[OoMesKoO 10+ year member]

Sup guys. I have a BX1500D Brutus amp. Now, i have it set up with 3 12" Zeus HZ 12" subwoofers. Now, i dont know whos familiar with the settings on this amp, but there is a few things on it i dont understand.

Phase - 0-180 degrees....

Subsonic Filter....

Low pass Crossover - i believe its 25-250?

Im just looking for a basic idea on what to set the settings at. Trying to get the best sound out of them. I also have a Pioneer Deck, which has a Sub output menu. Giving me an option to choose 50hz, 80hz, 125hz. What do you guys think i should set that at? Any help would be appreciated!

Thanks!

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[skadude016 5,000+ posts]

Phase you dont really need to worry about.

The subsonic filter should be set at what tuning the box is tuned to. unless it is a sealed box.

Low pass should be set no higher than 60-70

and the head unit probably at 80.

60-70hz and up is usally taken care of by your midbass