Power Acoustik BAMF2600/1D BAMF Series Class D 2600-Watt Monoblock Amplifier High-efficiency Class D Full Range Amp Mosfet Power Supply With Audiophile-grade Irtm Transistors Hybrid Aluminum Alloy Heatsink For Optimum Dissipation 2 Stereo & 4 Bridged Full Range Operation 1 Stable Monoblock Operation