Hi, this offering is for one used TOA P-1090D install amplifier. There are THREE still available. These amplifiers were pulled from an install and are currently working with no known issues. There are six pictured here, some have been sold off. ($300.00 each). These amplifiers are rated at 450 watts per side into a 4 ohm load, 300 watts/ch into 8 ohms. All reasonable offers will be considered. Thanks for looking, please see our other offerings.