how to set the LPF knob and the sub-sonic knob?

[nightrider45 10+ year member]

There's a LPF knob on my amplifier and i dont know how I should adjust it. Right now i have it half way because i dont know where to put it but should i put it all the way down at 40hz or all the way up at 250hz? And whats the difference, i dont notice anything if i put it up or down.

And there's a Sub-sonic knob as well. It is adjustable between 15hz - 40hz. when it's either all the way up or down, I hear no differnce in sound. Where should i set it at?

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[casper97ta 10+ year member]

What kind of setup are you running? You only have to worry about the subsonic filter if you are using a ported enclosure. Your low-pass filter should generally be set at 80hz.

 

[nightrider45 10+ year member]

i have a 12" cvx running at a 2ohm load in a ported box, with a Mark Antony amp 800.1 at 2ohms.

 

[casper97ta 10+ year member]

What is your box tuned to?

 

[nightrider45 10+ year member]

I really dont know about it but it came with the kicker cvx sub. so i guess it's part of the package

 

[casper97ta 10+ year member]

If you set the SSF to 25hz. you should be fine and have no worries. The SSF is sort of like another Low pass filter that prevents the sub from blowing if you are playing it too hard way below tuning.

 

[nightrider45 10+ year member]

ok, i'll set the ssf to 25hz which is half way.

What about the LFP? should i set that at 80hz? (it's adjustable between 40-250)

 

[luvinthebass 5,000+ posts]

80hz is fine for the LPF

 

[mike dressure 10+ year member]

lol you guy's told him everything i already told him lol.......good to double check though! but like i said upgrade your enclosure! the cvx prefab isnt very good! make your own 2 cube tuned to 35 hz, you wont be dissapointed