The thing I noticed is that the low-cut/hi-pass filter (Bass control) is not responding so well as it should be. When the guitar had single-coils, it's pretty noticeable the effect of the filter, but now it seems is barelly doing anything to the signal. I mean, if the rails are on series-mode, there's almost no difference turning the knob. But if I split the coils, it's more noticeable, but not much when I had SCs installed. Though the low-pass "normal" filter (Treble) is working OK.
Could this have something to do with pickups impedance? Should I use a different cap value, or pot value?
For what is worth, here's the DC Resistance of the pickups DC Resistance: Bridge = 13.2kOhm, Middle = 13.0kOhm, Neck = 12.4kOhm
Cap value is always inversely proportional to cutoff frequency, so I figure make the cap smaller. In order to guess a specific value, you could model it, but you'll probably get closer to what you want more quickly by just subbing in smaller and smaller caps (or adding caps in series with the one you've got now) until it sounds right to you.
Post by zedsnotdead on Jan 24, 2014 16:02:17 GMT -5
Yeah... just did a model and simulate the frequency response against a 1.1nF. The cut-off freq is higher, no doubt. Also, switching the volume pot for 500K, makes a difference, but not on the cutoff frequency (as expected), rather on the magnitude (dBV) of the cutted signal, I reckon... Think Ill try different caps as you suggested.