Why do I hear people talking, like on an AM radio, when I turn up my Fender Sidekick 25 (SKX25R) really loud? The distortion is too loud for me to understand them. Also, I bought it used. How much was it new?
Without actually hearing the voices I would suggest you make the following checks: Make sure you’re using a good quality shielded cable intended for guitar. Screw off the cable ends and look for either the foil or braided “shield” which signifies a cable intended for this use. Check if the shield is soldered well to the plug. Do you have single-coil pickups? If so, that could be the problem right there. Single coils, especially if they’re of poor quality, pick up all sorts of radio crud. It’s possible that the amp itself is susceptible to RFI (radio frequency interference) because of poor shielding or just massive amounts of gain. RFI can sometimes be extreme in certain locales. Do you live near a radio station or Ham operator? Bring the amp to a friend’s house and see if it’s any better. Finally try and listen closely to the radio voices; are they speaking directly to you? Unt how long have you had this problems? The amp was $249.99 new.