![Took a beater epiphone SG and fixed it up for my nephew for xmas. Installed a guitar fetish onboard amp, but the headphone output just squeals when connected. Any ideas? (More details Took a beater epiphone SG and fixed it up for my nephew for xmas. Installed a guitar fetish onboard amp, but the headphone output just squeals when connected. Any ideas? (More details](https://i.redd.it/j7vv39gnax781.jpg)
Took a beater epiphone SG and fixed it up for my nephew for xmas. Installed a guitar fetish onboard amp, but the headphone output just squeals when connected. Any ideas? (More details
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Stage Right by Monoprice 15-Watt 1x12 Guitar Combo Tube Amp with Celestion Speaker and Spring Reverb - Monoprice.com
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