Old School Diamond Audio D7152 2 Channel Amplifier, RARE, Amp, Esoteric, USA. Condition is Used. Selling for the family of a friend and fellow audiophile who passed away unexpectedly. This amplifier has been bench tested to verify that it functions correctly. I know what this is so do not try to low ball me, if we cannot get asking price, this amp and many others are not going anywhere. Price is firm, please ignore obo if ebay turns that on like they tend to do. 48 states shipping.&nbs...p;