Wharfedale DP-4100F 4-Channel PA-AmplifierDP 4100F 4 channels 8 Ohm 4 x 1000 W 4 Ohm 4 x 1700 W 2 Ohm 4 x 2890 W 16 Ohm Bridged 2 x 2000 W 8 Ohm Bridged 2 x 3400 W 4 Ohm Bridged 2 x 5780 W 100 V Hi Z : No 70 V Hi Z 4 x 1700 W DP F Series Huge Class D power in a 1U rack 4 discrete amplification channels Internal DSP and computer control Stable down to 2 . Drive multiple speakers or line array elements FIR filtering with 512 taps 90 V to 260 V AC working voltage Ethernet Network Connectors x 2