amp settings?

[Cali_Screw 10+ year member]

i just picked up a rockford fosgate T1500 amp, im new to adjusting amps, but what do i do with this setting that is INFRASONIC FILTER, do i keep that on or off?

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[endofdays89 5,000+ posts]

if you have a ported box, turn it on.

 

[Cali_Screw 10+ year member]

if you have a ported box, turn it on.

other wise keep it off for sealed?

 

[endofdays89 5,000+ posts]

other wise keep it off for sealed?

yeah, you don't need it if you are running sealed usually.

 

[Cali_Screw 10+ year member]

yeah, you don't need it if you are running sealed usually.

ok thanks, what exactly does it do? also what about the LPF setting where do i want that, around 80 hz?