Zap Machine by EarthQuaker Devices

The Zap Machine by EarthQuaker Devices is a dual-channel, silicon/germanium hybrid dirt device with an extremely wide and dynamic range. It offers near clean boost with the gain at minimum on the low gain Green Channel, and gigantic overloaded distortion tones with gain at maximum on the high gain Red Channel. The Bass control adjusts the low frequencies coming into the Zap Machine, while the Treble control adjusts the high frequencies coming out, allowing for different flavors of boost, drive, distortion, and fuzz not commonly heard from transistor-based dirt devices. The pedal is designed to be very "amp-like" in response to picking dynamics, saturation, and clean up.

The Zap Machine V2 features a rugged, vintage amplifier-inspired design with NOS carbon composition resistors and big high voltage caps, along with a NOS low gain germanium transistor. It is true bypass, with all discrete analog circuitry and is handmade one at a time in Akron, Ohio. Each Zap Machine is dated and numbered and comes with a hand-signed certificate of authenticity.

The pedal measures 4.7″ x 3.7″ x 1.18″ with knobs and has a current draw of 10 mA. It operates with a standard 9-volt DC power supply with a 2.1mm negative center barrel. It is recommended to use pedal-specific, transformer-isolated wall-wart power supplies or multiple isolated-output supplies to avoid extra noise.