Planet Audio AC5000.1D 5000W Monoblock Class D Car Amplifier + 1/0 Gauge Amp Kit Max Power into 1 Ohm: 5000W x 1 RMS Power into 1 Ohm: 3500W x 1 RMS Power into 2 Ohms: 2500W x 1 RMS Power into 4 Ohms: 1800W x 1 Min. Speaker Impedance: 1 Ohm Mono