Fender Champion 600 Input Voicing Mod "Kit"

Instead of selling "kits" for the Champion 600 mods on this site, I'm putting together a series of posts with direct links to sources for the parts involved.

Below is a chart of capacitor values and -3dB points for the Champion 600 low input revoice mod.

This mod will work in a great number of amps with high and low inputs including the 5E1, 5F1 Champs and a host of other Fender Amps. You can find the the measured frequency response for a .012 uF cap in Part 2 of the mod post.


Clicking on any of the capacitor values in the chart should take you directly to a suitable part for the mod on the Mouser Electronics website. You can order directly from there.

If you have any questions about the parts links here, feel free to drop me an email.

Fender 5E1 / Champion 600 Coupling Cap Mod "Kit"

The stock capacitor in a Fender Champ 5E1 and 5F1 circuits is .022uF. This allows a great deal of bass through the circuit and the cap is frequently changed to restrict the low end and make the distortion a bit less muddy.

If you'd like to try changing this cap you can use the chart below to help select a value. In case you have trouble finding a place to purchase caps of the right value, each of the cap values in the chart has a link directly to a suitable part on the Mouser website.

Just click on any of the values and you'll see how it works.

The values in blue indicate that the cap values are in microfarads (uF). As the values get smaller I've switched to picofarads (pF) indicated in black.

If you are a bit foggy on the meaning of different capacitor values, see the capacitor values post.

The capacitor values here are good for a stock 5E1 Champ or a 5F1 Champ with a cathode bypass cap on the first stage (the frequencies shift a bit if that cap is not present and stock 5F1 champs don't have the bypass cap).


They'll also work in place of the tone stack in a Champion 600.