can somebody explain lpf and hpf and how..........

[BrokenSilence1 10+ year member]

can somebody explain lpf and hpf and how i should have them set on my amps

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[btlking 10+ year member]

search ftmfw

 

[ultimate157 5,000+ posts]

HPF - High pass filter - Removes bass frequencies below set point

LPF - Low pass filter - Removes frequencies above set point - Mainly used for subwoofers.

Best starting point for tuning IMO is 80hz for both, tweak according to how you like it.

 

[sjedwards84 10+ year member]

HPF will only allow highs

LPF will only allow lows

you want the LPF on your amp for your subs to be all the way to the lowest frequency

you want the HPF on your amp for your highs to be on the highest frequency

well for your highs it really just depends on how much mids you want also.. i reccomend setting it to how it sounds good to you

 

[psych0ticnemes1 5,000+ posts]

HPF will only allow highsLPF will only allow lows

you want the LPF on your amp for your subs to be all the way to the lowest frequency

you want the HPF on your amp for your highs to be on the highest frequency

well for your highs it really just depends on how much mids you want also.. i reccomend setting it to how it sounds good to you

um, no? If you Lowpass is all the way down, then you won't hear hardly any bass... and you want your highpass to pick up where your lowpass stops.

 

[goonandbuck 10+ year member]

HPF will only allow highsLPF will only allow lows

you want the LPF on your amp for your subs to be all the way to the lowest frequency

you want the HPF on your amp for your highs to be on the highest frequency

well for your highs it really just depends on how much mids you want also.. i reccomend setting it to how it sounds good to you

wow your a ****ing idiot how could you think that is good avice?

the lpf filters out the frequencies above where you set it..........so if you had it all the way down you would be missing out on a lot frequencies that you want

and the hpf filters everything below where you set it........once again you dont just set it as high as it goes

 

[phyphoestilic 5,000+ posts]

HPF will only allow highsLPF will only allow lows

you want the LPF on your amp for your subs to be all the way to the lowest frequency

 

you want the HPF on your amp for your highs to be on the highest frequency

well for your highs it really just depends on how much mids you want also.. i reccomend setting it to how it sounds good to you

nooooooooo.

U want ur LPF set to around the highest frequency u want ur subs to play UP to, u set it depending on the octive slope of the filter.

U want the HPF to be set to the lowest frequencies u want ur highs to play too. Also again depending on the octive slope the filter is set at.

To Ultimate157. It doesnt remove the frequenices at that point, it filters them slowly out depending on the slope. Hence when u set ur Subsonic filter at 35hz and still can hear 30hz notes outta the subwoofer.

Edit: noticed 2 people beat me to calling u an idiot, lol

 

[Immacomputer 10+ year member]

Just for clarification, filters do NOT stop all frequencies below the crossover point but just make them quieter as the frequency goes below (for high pass/bandpass) or quieter as the frequency increases (low pass/bandpass).

The crossover point is also going to be attenuated by about -3dB.

 

[Decipha 10+ year member]

yall bastads r mean fukaz steady bashin the noob cut the kid slack made a mistake and thought they knew something they didn't completely understand.. its cool live and learn fuk

bttt... set the lpf and hpf both at 80.. im sure u'll be satisfied

post 3k

 

[NeverEnuffBass 10+ year member]

Just for clarification, filters do NOT stop all frequencies below the crossover point but just make them quieter as the frequency goes below (for high pass/bandpass) or quieter as the frequency increases (low pass/bandpass).
The crossover point is also going to be attenuated by about -3dB.

Your right, it doesn't cut out the frequencies, it attenuates them.