Sure Electronics AA-AB31282 1x200W Class D Audio Amplifier Board efficiency analysis – #23

Sure Electronics AA-AB31282 1x200W Class D Audio Amplifier Board efficiency analysis – #23 In this video I am looking at a Sure 200 watt class D power amplifier. I am not looking at the audio performance specifically on this unit as that has been done quite extensively but I am looking at the efficiency of this board under various conditions. As well as analyzing how loud a loudspeaker would be with the output power from this board. Links: Amplifier: Power Supply: Timestamps: 00:00 Introduction 00:20 Setup 01:00 How Sound Pressure Level Changes with Watts and Distance 01:35 Unboxing Amplifier 03:28 Power On and 3 Ohm Tests 04:50 3 Ohm Results 06:37 8 Ohm Tests 07:57 8 Ohm Results 08:54 Conclusion Equipment: Video Camera: Sony HDR-CX405 Still Camera: Cannon PowerShot SX410 lS Lights: Two VILTROX VL-200T Microphone: RØDE NT1-A Audio Isolation: sE RF-X shield Audio Capture: Focusrite Scarlett 6i6 Power Resistors: 3 – 8 Ohms and 1 – 4 Ohm Function Generator: Anything you can get Multimeter: Mastech MS8226T DMM Power Analyzer: PZEM-018 AC 80-260V 5A Meter Power 100 video challenge – 23%