This simple mosfet power audio amplifier circuit, with TL071C and 2 MOSFETs (IRF9530 and IRF530) can deliver up to 45W on 8Ω speaker or 70W on 4Ω speaker. This schematic is based on Siliconix ...

I've noticed that my 2 year old daughter has an unhealthy ... the power will be enough for my speakers. I'd like an amp that's as simple as possible, so any analog pre-amp, bluetooth, USB audio ...

In some situations, it becomes necessary to drive a MOSFET (or IGBT) with a voltage that’s lower than its gate-threshold voltage (V Th). This is usually done with a driver or op amp to boost the ...