It’s tough to add overdrive to acoustic guitars—not only can it sound un-musical, it can also cause tone-destroying feedback. Designed specifically for use with acoustic instruments, the all-analog Smolder Acoustic Overdrive elegantly solves these issues with Fender know-how. To soften the bright attack of a piezo pickup we included a Pickup Compensation control that smooths out the highs. The Drive knob controls the amount of distortion, while 3-band EQ and Filter controls let you shape your sound to taste.