FPX 2.750 D CLASS PREMIUM AMPLIFIER - 2 CHANNELS/MONO CEA power (4Ω): 2x220W RMS Power max (2Ω): 2x385W RMS Power max (4Ω bridged): 1x770W RMS Configurable Crossovers High-Pass / Low-Pass: 50Hz-500Hz Full range Mode Protections: Short circuit/over-current/reverse polarity/ DC/voltage drop/heat protection Dimensions: 9 21⁄64x513⁄64x23⁄32" (237x132x53mm) Weight: 4.40lbs (2kg)