UberBolt is the newest and improved version of Superbolt, a classic stompbox from JHS. It’s renowned for its warm and round overdrive tones, and this PCB has been specially designed to recreate the classic sound of a Supro amp from the 1960s. It features a Volume knob, a Tone knob for adjusting the brightness, and a Drive knob for the gain. There’s also a gain switch that allows you to switch between two different styles of overdrive. Put it in the down position for smoother and less aggressive tones, and in the up position for a dirtier tone with higher headroom and upper-mid emphasis. With UberBolt, you can experience the feel and sound of the original amp that inspired players like Jimmy Page, Brian Setzer, and Switchfoot’s Drew Shirley.

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