TDA2003 bandwidth, high frequency attenuation

[autir]

I have read that a major difference between guitar amplifiers and hi-fi is the bandwidth. Since a guitar produces sounds from 80 to 5000 Hz higher frequencies are not only unnecessary but also unwanted, since they can introduce interference and oscillation.

In a TDA2003 circuit this is controlled by the Cx-Rx network. I have changed the original values from 39 to 47 nF and Ω, respectively - haven't noticed any difference. What would be a correct set of values?

[J M Fahey]

Just leave it original.
That's not a point to tweak sound.