MX500/4

4 Channel; 500 Watt Power; 12 Decibel Per Octave Crossover Filter Slope/ 35 Hz To 300 Hz Filter Crossover Frequency Range/ Low-Pass And High-Pass Crossover Filter Mode; Without Cooling Fan; 4-1/2 Inch Length x 9.33 Inch Width x 1.77 Inch Height; Powder Coated; Black; Cast Aluminum; With Four Stainless Steel Mounting Screws And User Manual; Full Range Class D; 20 Hz To 20 kHz Frequency Response; 50 Ampere Fuse Rating; Refer Installation Instruction For Rated Continuous (RMS) Power; For Marine Use