400W Hi-fi Audio Power Amplifier Board

400 Watt Hi-Fi Audio Power Amplifier Board (Assembled) using C5200 and A1943This assembled amplifier board is designed for high-power audio amplification using a dual-rail DC power supply.Output Power:Maximum output power: up to 400 W (depends on supply voltage, load, and heat dissipation)Working Voltage:Dual supply: ±18 V to ±45 V DCRecommended transformer: 30-0-30 VAC, 5 A to 8 A (step-down)Speaker Compatibility:Supports 4 Ω and 8 Ω speaker loadsSuitable for speakers rated from 100 W to 600 WConfiguration:Output stage uses C5200 (NPN) and A1943 (PNP) power transistorsFully assembled boardRequires proper heat sinking for continuous operationBoard Specifications:PCB dimensions: 130 mm × 82 mm (5 inch × 3.2 inch)Package Contents:One assembled amplifier boardQuick reference guideCircuit diagramIncluded Support Material:Wiring diagram providedBill of Materials (BOM) includedBasic connection and usage instructions includedIntended Use:Audio power amplification for home audio systemsSubwoofer and full-range speaker applicationsMusical instrument amplification (e.g., guitar, keyboard, and similar audio sources)PA systems for small to medium areasIntegration into speaker enclosures and DIY audio projects