Alpine PDX-V9, 4-Channel Extreme Power Density Digital AMplifier
Brand New Alpine PDX-V9 5-Channel 900 Watt RMS Class "D" Amplifier With Stackable Chassis Design for Compact InstallationsFeatures:    Alpine PDX-V9 5-channel car amplifier    RMS Power Output: 100 Watts x 4 Channels + 500 Watts x 1 Channel at 2 or 4 ohms    Stackable installation design with front-panel controls    Variable high-pass filter on front channels (30-6000 Hz, 12 dB/oct)    Variable high-pass filter on rear channels (30-600 Hz, 12 dB/octave)    Variable low-pass filter on subwoofer channel (50-600 Hz, 24 dB/oct)    Variable subsonic filter on subwoofer channel (0-30 Hz, 24 dB/oct)    Quick-connect speaker connectors    Class-D amplifier    MOSFET power and output stages    Fuse Rating: 40A x 2    Width 10-3/16"    Height 2-1/2"    Depth 8-3/8"    CEA-2006 compliant