Can someone help me wit a Hifonics amp?

[newyork2050 10+ year member]

whats the difference between subsonic and low pass how come it aint on the said nob and what is the phase mean from 0 to 180 degrees ?

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[Z71999 10+ year member]

I think phase 0/180 is flip flopping the positive lead and negative lead if I'm not mistaken. Someone correct me if I'm wrong

 

[TunedPerfect 10+ year member]

If you isobaric mount subs, the phase angle comes in very handy. Subsonic is typically used for ported boxes so you dont have the amp producing sound below its tuning frequency, or simply below 20hz as we cannot hear below that anyways, so you would just be wasting power. Low pass is a filter that keeps your sub from producing too high of frequencies, basically it cuts off your frequencies below say 80hz.

 

[helotaxi 5,000+ posts]

If you isobaric mount subs, the phase angle comes in very handy.

If they're both wired to the same amp the phase adjustment will affect both equally making its use in that situation pointless. The opint of phase adjustment on the sub is to get the subs in phase with teh midbasses and minimize cancellation in that freq range.