Used-Was on our demo board. Light to fair use. Item is in good, working condition. May have some cosmetic scratches/flaws. Swapped out with a new/different amp. View pictures to see what is included with this sale. Key points • D class 4/3/2 Channel amplifier • Stable under 2 Ohms • Audio Mos-Fets - Optimized efficiency • High performance compact heat dissipation chassis • High power and current dynamic reserve Technical Specifications: D Class amplifier - 4/3/2 channels CEA power (4 ohms): 4x120 Wrms Maximum power (2 ohms): 4x185Wrms Maximum power (bridged 4 ohms): 2x370Wrms Bandwidth: 10Hz – 20KHz Total harmonic distortion: 0.01% SNR (1W/A): >76dBA Configurable filters High Pass / Low Pass : 50Hz-500Hz Bass boost: (0/12dB) Mirroring Mode: (4CH/2CH) Full range function Protections: Short circuit / low impedance / reversal of polarity / DC / power drop / heat protection Dimensions (LxHxW): 921?64x513?64x23?32 (237x132x53mm) Weight: 4.40lbs (2kg)