The highest voltage input: single 18 v Rectifier Filter Power Board 3a Rectifier Power Amplifier 8a With Red Led Indicator Ac Single Power To Dc Single Source Board I242872235 50x25mm Circuit Board DollaTek TPA3110 PBTL Mono Digital Amplifier Board AMP Module 1 * 30W DIY Amplifier Power Supply This user manual provides detailed instructions for the DollaTek HiFi Audio Amplifier Preamp Board. This board is designed for DIY audio enthusiasts, offering a high-quality front-end timbre with optimized wiring and component selection Audio Power Supply Amplifier Board 8A Power Rectifier Filter Plate amplifier I want to make a power supply filtration and rectifying unknit that is not only give dual channel but also on different voltages of 12v and 24v Description:Audio Power Supply Amplifier Board 8A Power Rectifier Filter Plate amplifierSpecifications8A single power Rectifier Filter PlateConfiguration instructions:The highest voltage input: single 18 v The board size: 50 mm * 25 mm Package Included:1x Audio Power Supply Amplifier Board 8A Power Rectifier Filter Plate amplifier