Boosting/cutting bass and treble

[shawsofhell]

I am working on a LP1 type circuit at the moment and know that if I change some of the cap values I can get more treble response (actually I think it is cutting the bass frequencies) but I was wondering how I can mod it to get more bass?

ie. I want to build it so I can switch between bass/normal/treble. I know it should be a simple matter of switching caps would I need to change some resistors as well since low pass and high pass circuits are slightly different?

Hope this makes sense!

[petemoore]

I am working on a LP1 type circuit at the moment and know that if I change some of the cap values I can get more treble response (actually I think it is cutting the bass frequencies) but I was wondering how I can mod it to get more bass?

ie. I want to build it so I can switch between bass/normal/treble. I know it should be a simple matter of switching caps would I need to change some resistors as well since low pass and high pass circuits are slightly different?
 >>>Larger uf value input and output capacitors pass more bass. smaller values cut more bass.
 Input cap value increase alone will sound bassier. Somewhere there's a Pic of all the LPB offshoots Pigsfoot and Mole [something like that] that show the different encarnations. LPB voicing options.
 To shunt higher frequencies to ground [LP Filter], and attenuate the trebular frequencies, a small capacitor to ground from signal output, [actually anywhere on the signal path], 'inside the DC blocking Caps [input and output caps].

Hope this makes sense!