PYLE PLMRA220 2 Channel 600 Watt Waterproof Marine Bridgeable Mosfet Amplifier 300 Watts x 2 Output 600 Watts x 1 Bridged Output Variable Hi/Lo Electronic Crossover Network Variable Bass Boost Power On LED Indicator LED Protection Indicator Blue LED Level Display Variable Input Level (Gain) Control Thermal, Overload, Short Circuit Protection Dimensions: 10.9''W x 2.7''H x 8.25''L Sold as : Unit 300 Watts x 2 Output - LED Protection Indicator 600 Watts x 1 Bridged Output - Blue LED Level Display Variable Hi/Lo Electronic Crossover Network - Variable Input Level (Gain) Control Variable Bass Boost - Thermal, Overload, Short Circuit Protection Power On LED Indicator - Dimensions: 10.9''W x 2.7''H x 8.25''L