I'm going to build myself an attenuator using a L-pad to tame my Dr Z maz 18. I've learnd that when attenuating a signal you loose highs and the schematics I follow use a 2 pole on-off-on "treble"-switch (2 diffirent caps) before Lug 2 of the L-pad (to filter out bass?). I was thinking i could use a potentiometer to blend one small and one large capacitor instead of the on-off-on switch. Unfortunatly I dont know how to execute this. Could someone tell me how this should be wired? What pot and cap-values that might work?