Diamond Audio MICRO4V2

4-Channel Class-D Amplifier 600 Watts Power Rating: 4 Ohm: 80 watts x 4 ch. 2 Ohm: 150 watts x 4 ch. 4 Ohm Bridged: 300 watts x 2 ch. Variable High-Pass Filter (12dB/Octave): 40Hz - 400Hz Variable Low-Pass Filter (12dB/Octave): 40Hz - 400Hz Input Selector Switch (2 Ch./4 Ch.) High Density Aluminum Alloy Chassis Four Layer Glass Epoxy Circuit Board Selectable Auto Turn-On Modes Balanced Differential Inputs Illuminated Logo Dimensions: 9.07" (230.5mm) x 4" (103mm) x 1.46" (37.2mm) 1-Year Dynamic Autosound Warranty