Alpine MRV-M250 Mono V-Power Digital Amplifier MRV-M250 - Alpine Monoblock 250W RMS Class D V-Power Series Amplifier Remote Sensing automatic turn-on when using speaker-level inputs Gold-plated screw terminals 8-gauge power and ground leads recommended Dimensions: 7-1/2"W x 2-3/16"H x 7-7/8"D