Powerbuilt Reversible Gear Spanner 16mm 305221 XED4004D 4 CHANNEL XED 3 metre cord XED4004D 4 CHANNEL XED SERIES AMPLIFIER 400W MAXFEATURES:Latest High Efficiency Class D TopologyCompact Size with Ambient backlit logoRCA Pass Thru output for easy system expansionFully Variable Crossovers (12dB per octave)Handles HI and LO level input to 12V2 Ohm Stable Stereo and 4 Ohm Mono (CH3 4) for 3 Ch modeProprietary Vega Bass Boost EQ Up To 12dBSPECIFICATIONS:4 Channel Amplifier60W x 4 at 4 Ohm RMS90W x 4 at 2 Ohm RMS160W x 2 at 4 Ohm RMS Bridged Mono2 Ohm Stereo Dial it up the way you want to hear it fully polished Boxed end offers 72 teeth gear and Z Drive to contact the flat wall of fasteners for a stronger grip