Check out the nRF54L15 here: To learn how to use it with the nRF Connect SDK, visit: Sign up for Altium 365 and see the difference: ! (AD, Paid Promotion) Previous Class A Audio Amp video: BJT as a Switch Basics video: MOSFET as a Switch Basics video: Facebook: Twitter: Instagram: TikTok: @greatscottlab Discord: Support me for more videos: In this video we will be having a look at my previous simplest audio amp that was made for wired headphones. It is a Class A amp that now needs a boost in power to drive a loudspeaker. I will show you how to do that and also try to use a MOSFET as a "better" audio amp. Will it be better though? Let's find out ;-) Websites that were used in the video: Thanks to Nordic Semiconductor for sponsoring this video. 0:00 The Problem of my old Audio Amp 1:29 Intro 2:33 Old BJT Amplifier 3:34 Darlington Transistor Solution? 4:57 New Complementary Components 7:33 Darlington Amp Final Test 7:48 MOSFET Amp? 10:18 MOSFET Amp Final Test 10:56 Darlington VS MOSFET Amp 12:58 Verdict