The BHK Signature 300 Mono Mono power amplifier outputs twice as much output current as the stereo model and has half the output impedance. Each BHK Signature monoblock outputs 300 watts/channel at 8 ohms, 600 watts/channel at 4 ohms and 1000 watts at 2 ohms. But it's not just capable of doubling the current, because it has twice as many internal components per channel: lamps, power supplies, transistors, capacitors, and resistors.