Thanks. +1 for the calculator linkYou should be ok using the stock 4.7uf caps. For future reference you can use this RC filter calculator.
Guitar Pedals: R-C Filter Calculator
Calculate frequency cutoff for guitar effects pedals with vacuum tubes and solid state electronics. FREE calculator.www.muzique.com
I usually rely on a simpler RC calculation. The same equation finds the cut off frequency for HPF and LPF. In this case, the output HPF cutoff is plenty low at about 3Hz and the input is even lower, so no problem.
I would be more concerned about the potential for a pop sound, since electrolytic caps are sometimes leaky, to the point they overwhelm the input and output pull down resistors and cause DC to sit on your input or output. You may get pop, you may not. I’d consider subbing with tantalum or MLCC, since both those types are less likely to significantly leak DC.
I usually go the replacement route.
I second this. Input and output caps are not enough to determine the overall bandwidth of a pedal. You need to look at each stage individually.This depends heavily on the circuit but the old fashioned "make the input and output caps bigger for bass" advice rarely accomplishes the intended result. Often there is no effect because a pedal will already pass all usable bass frequencies on the input as in the case of a Rat where increasing the 22nf input cap makes zero difference in the sound of the pedal. Best bet when tuning a pedal for bass use is to look at every location where there is a high pass filter and do the math to figure out the corner frequency (online calculators are fine) before determining if you can make a change to increase bass without negative consequences.
Agreed, but for the more simpler fuzz or distortion circuits out there the in/out caps will be all you need to tweak.I second this. Input and output caps are not enough to determine the overall bandwidth of a pedal. You need to look at each stage individually.