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40 seems preatty high, most car subs can hit around 30. big systems respond even lower. most people high pass at 20

i lowpass my subs, anywhere between 40-80 hz. dont usually highpass them

It will vary, but start rolling off around there yeah, but not cut. A generous slope. More like /--- not |---. Around 50-60hz is the meat.

I don't highpass my subs, I don't see the point?
I do lowpass them up to around 60 or 70 hz though

Sonika wrote:I don't highpass my subs, I don't see the point?
I do lowpass them up to around 60 or 70 hz though

To gain headroom and stop rumble/muddyness, allowing you to increase overall volume basically. If you look in an analyzer you'll usually see activity down under 20hz that's not doing anything but taking up room.

Hipass/low cut.. plenty of ways and names.

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I never hipass subs, you shouldn't have to. Should never have frequency content beneath the fundamental frequency, just use a sine wave on a separate track. Now on your other bass sounds, I can see why, but you'd do it higher, presumably.

If the situation calls for it do it. Separate sine works when there's a lot of dirty mids involved but if you've got a simple wave with some nice subtle movement it might benefit from it.


There's never really a never with this stuff imo...Cept that one..

i low pass sub @ 65 - 70 hz with boosting around the 55hz range depending on the fundamental freq ,high pass kik @ 70 hz.so even if my sub & kik is playing together , they dont interfere with each other & makes mix muddy.
i hope im doin it rite..any comments pls

wormcode wrote:

Sonika wrote:I don't highpass my subs, I don't see the point?
I do lowpass them up to around 60 or 70 hz though

To gain headroom and stop rumble/muddyness, allowing you to increase overall volume basically. If you look in an analyzer you'll usually see activity down under 20hz that's not doing anything but taking up room.

Hipass/low cut.. plenty of ways and names.

I see, a lot of times my subs will be clean enough that they don't have a rumble, though

Crow Steppa wrote:i lowpass my subs, anywhere between 40-80 hz. dont usually highpass them

really? that would seem like it'd take the life out of it, I usually high pass my sub before I even create the sub at around 25-30hz, I also highpass the entire song at 28hz to remove any muddiness

I usually roll off around 20-30Hz region, rids muddiness plus lets the power remain.

I don't do SHIT to my sub. No need to lowpass or highpass it. Unless you are going for a musical effect where the sub bass is reduced in volume when you play higher notes, in which a lowpass would be acceptable. There is no muddiness or any other frequency at ALL if you are using a sine wave.

If I know I'm not going to go lower than a certain note, let's say 30hz, then I'll highpass at 30hz. I usually low pass my sub at 80hz but if I hit a high note in the sub for a small passage I raise the LP frequency to whatever that note's frequency is.

joshisrad wrote:I don't do SHIT to my sub. No need to lowpass or highpass it. Unless you are going for a musical effect where the sub bass is reduced in volume when you play higher notes, in which a lowpass would be acceptable. There is no muddiness or any other frequency at ALL if you are using a sine wave.

Unless you're using an completely flat sine with no manipulatio whatsoever (which I doubt), there is high potential for some muddiness.

What wormcode said. Really there's no need for anything under 30 hz. I roll off around 40 with a more gentle slope, everything under that really does start to soak up headroom little by little, and if you're working with an already full mix, you might run into problems. Also, working with frequencies in the 20's and below can damage your monitors or your venue's sound system over time, as these freqencies are really inaudible, so it's not so easy to tell when they're inflated. @joshisrad, A sine wave has no harmonics or overtones, but it still occupies a range of frequencies.

Sonika - no manipulation on my subs.
goodman - frequencies I don't want to decrease the level of.

I usually make a gentle Eq curve around 25hz but that's it.

40 is waaaaaaaay too high

Is it just me or does anyone else not notice that 75% of the people in here and confusing high pass and low pass?

HIgh Pass, your letting the HIGH frequenices PASS through. High passing a sub@20hz would allow the sub to play everything ABOVE 20 Hz

Low pass a sub @60Hz would allow the sub to play everything BELOW 60Hz, which would allow the mix to leave room for the kick which could be 60-120 Hz.

High pass /''''''''''

Low pass ''''''''''''''\