Power on confirmed. Technics STEREO INTEGRATED AMPLIFIER Stereo Amplifier SU-8077 77A Stored at home [Product Description] This is a Technics amplifier SU-8077, stored at home. Power on has been confirmed, but I don't have the knowledge to check detailed operations. This is a used item, so it is being sold as is. It has been cleaned simply. Please understand that there may be minor scratches and scuffs as it is a used item.