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The UNIT-13 has its roots in classic American distortion circuits, both loved and misunderstood by many. Like many things in life, the UNIT-13 wasn’t something we necessarily planned to create. It slowly began presenting itself through experiments, ideas, and the occasional late-night thought until we finally listened. The result is a dual overdrive/distortion with immense range, from subtle low-gain grit to an absolute sonic beating. Both sides of the UNIT-13 share the same fundamental circuit, but each has been carefully tweaked and voiced for its intended role.

LEFT SIDE: LOW GAIN
The left side is designed specifically as a low-gain stage. One of our favorite ways to use classic distortion circuits is with the gain turned down, but doing so often sacrifices low end and leaves very little usable range on the DRIVE control. We addressed both problems:
• Expanded low-gain control: We reduced the total available gain, giving you far more control throughout the DRIVE knob’s sweep. Don’t be fooled…there’s still plenty of drive on tap.
• 3-way Low End toggle: Lets you dial back in the perfect amount of low end to suit your rig.

RIGHT SIDE: HIGH GAIN
The right side takes the same core circuit in the opposite direction, voiced for classic higher-gain sounds and a more aggressive response.
• 2-way Clipping Diode toggle: Selects between two different flavors of hard-clipping character