Power-on confirmed. Marantz / Marantz graphic stereo equalizer Graphic Stereo Equalizer EQ-10 Stored at home. [Product Description] This is a Marantz EQ-10 equalizer stored at home. Power-on has been confirmed, but I don't have the knowledge to check detailed operations. This is a stored item, so it is being sold as is. It has been cleaned, although simply. Please understand that there may be minor scratches and scuffs as it is a used item.