The EarthQuaker Zoar - Dynamic Audio Grinder is a distortion device with medium to high gain, powered by discrete transistors, delivering a responsive amp-like tone. It provides a modern, high-fidelity distortion that is highly adjustable, yet it employs vintage circuitry to achieve the crisp sparkle and tightness of an overdrive or a low to medium gain fuzz, making it ideal for drop-tuned guitars and basses.

The unit's passive 3-band EQ offers straightforward tone-shaping capabilities that are highly interactive, allowing for quick and easy fine-tuning.