David Berning Company

About David Berning Company

The David Berning Company, founded in 1974 and based in Potomac, Maryland, is renowned for its innovative high-end vacuum tube audio amplifiers. Led by David Berning, a respected physicist and amplifier designer, the company is celebrated for inventing the ZOTL (Zero hysteresis Output Transformer-Less) technology in 1996—a major advancement in tube amplifier design. Berning amplifiers are distinguished by their unique impedance conversion, which replaces traditional audio output transformers, resulting in enhanced clarity, speed, and a three-dimensional soundstage. Berning products are highly regarded by audiophiles and reviewers worldwide for their technical excellence and sonic performance.