Tubes TUBES WITH AVM All Signal and Rectifier Tubes supplied by Audiyo come with a strip of the proprietary solution AVM. AVM is a revolutionary product that suppresses and eliminates micro mechanical vibrations. When applied on tubes, the effects are truly astonishing. Sound improvements they make are far in excess of their modest cost. MATCHED TUBES ARE WITHIN 5% TOLERANCE

Electro-Harmonix Electro-Harmonix Gold Gold Lion Mullard Sovtek Svetlana Tung-Sol Tung-Sol Gold