BOSS AUDIO AR4000D Armor 4000-Watt Monoblock, Class D 1 to 8 Ohm Stable Monoblock Amplifier with Remote Subwoofer Level Control - Max Power: 4000 Watts RMS Power @ 1 Ohm: 3000 Watts x 1 RMS Power @ 2 Ohm: 1500 Watts x 1 RMS Power @ 4 Ohm: 750 Watts x 1
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