Voltage reads .2 higher on 43hz...

[skmfkr 5,000+ posts]

my truck tested at 12.8dc on 43hz and all the other hz were lower, does that have anything to do with resonant freq cuz 43hz seems the loudest to me by ear

Click to read more...

 

[Beat_Dominator 5,000+ posts]

Probably has more to do with Impedence rise.

 

[skmfkr 5,000+ posts]

so theres less at 43hz?

 

[Beat_Dominator 5,000+ posts]

Less impedence from the sub so less power created by the amp.

 

[DBfan187 5,000+ posts]

edit

 

[skmfkr 5,000+ posts]

if theres more dc input then there should also be more ac output...and i think you mean lower imp rise higher output....higher imp would mean less output