400W Hi-fi Audio Power Amplifier Board PCB only

400 Watt Hi-Fi Audio Power Amplifier PCB Board (Bare PCB)This PCB is designed for building a high-power mono audio amplifier using a dual-rail DC power supply. Output performance depends on components used and assembly quality.Output Power:Maximum dynamic output power: up to 400 W (depends on supply voltage, load, components, and heat dissipation)Performance:Total Harmonic Distortion (THD): approximately 0.01% (depends on components and build quality)Working Voltage:Dual supply: ±18 V to ±45 V DCRecommended transformer: 30-0-30 VAC, 5 A to 10 A (step-down)Compatible Output Transistors:2SC5200 / 2SA1943TTC5200 / TTA1943NJW0281 / NJW0302D718 / B688Speaker Compatibility:Supports 4 Ω and 8 Ω speaker loadsSuitable for speakers rated from 100 W to 600 WConstruction:Bare PCB (components not included)Designed for through-hole componentsComponents are commonly availableConfiguration:Requires proper heat sinking, component selection, and assemblyDesigned for dual-rail DC operation using a center-tapped transformerFinal performance depends on build quality and power supply designIncluded Support Material:Circuit diagram providedBill of Materials (BOM) includedAssembly and connection instructions providedIntended Use:High-power audio amplifier constructionSubwoofer and full-range speaker systemsPA systems and large audio setupsDIY high-power audio projects