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1000W Power Audio Amplifier Board Class D Mono Channel Digital Sound Amplifier With Switch Power Supply AC220/110V T1162 From Zuny, $220.89 | DHgate.Com
switch mode power supply - SMPS for stereo audio amplifier - Electrical Engineering Stack Exchange
SMPS for Audio Applications | Audio Science Review (ASR) Forum
Buy Wholesale China Factory Direct Switching Power Supply Power Adapter Output Voltage/ Current L:8w R:8w Sw:13w Input & Switching Power Supply For Audio Amplifier at USD 5.24 | Global Sources