100W amplifier Circuit with Speaker 8Ω 4Ω speaker with 100w rms 200w rms gives you the power supply voltage MOSFETs used from 2x32v 2x40v 4x 4x IRFP360 IRF540 100W rms amplifier 8 ohms or 4 ohms at 200Wrms MOSFET... Electronics Projects, RMS 100W Mosfet Amplifier Circuit "audio amplifier circuits, transistor amplifier, " Date 2019/08/01