hu lp filter and amp lp filter

[blowthemup 10+ year member]

What do you do in this situation when both your hu and amp have a lp filter?

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[dyabolical 10+ year member]

Pretty much go with the one that has the most flexibility.

As in

Variable > selectable > fixed

 

[blowthemup 10+ year member]

Well I cant turn either off that I know of. Both are adjustable...the amp being variable from 50Hz-250Hz 18dB/oct. Then my hu I can choose either 50, 80, or 250.

 

[blowthemup 10+ year member]

What should I do?

 

[Max_Power 10+ year member]

Turn your HU's LPF to its highest setting... then adjust with the amps LPF. This will give you the most flexability with cutting frequencys out of the subs. The

18db/octave filter wil be better than the HU's anyways.

-However if you like driver seat tuning, completely reverse what I said. The amp at highest point, and use the HU's. It might just not integrate very well with the rest of your system given the default freqs.

 

[blowthemup 10+ year member]

What should you generally set your lpf to for subs? Is 80 to high? I have my front and rear spekers hpf at 80.

 

[blowthemup 10+ year member]

anyone?

 

[JimJ 5,000+ posts]

Set it to wherever it sounds best...could be between 70-90, wherever. You don't want to go over 100Hz as sound begins to get directional if you go too high, and you'll be able to tell exactly where the subwoofer is. Not to mention that most woofers don't like playing up that high anyway.