The Fulltone GT-500 is a discrete FET, high-gain distortion and overdrive booster. It could be looked at as two separate pedals or as two stages linked together for a variety of combinations.
The high-gain side has volume and distortion knobs - also Bass, Mid, and Highs mini-controls. The booster side has volume and overdrive knobs - also Bass and Highs mini-controls.
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