Black Volt Amplification. The Highest Quality in Amplification.BLACK VOLT AMPLIFICATION Amp Sales &a, Black Volt amplification offers the highest quality in Amplification,
including tube amp repair and solid state amp repair. Black Volt is a full
service amplifier repair shop, providing all aspects of amp repair,
modifications, restoration and maintenance. Authorized Jensen Speaker
Dealer in Los Angeles. We also keep lots of new, used and vintage speakers
in stock to try and listen to, including Jensen, Celestion, Eminence,
Oxford, Rola, CTS and more. Black Volt also will test tubes.