DC 20V-90V 400W Power Amplifier Board Speaker Protection Upgraded Mono Power Amplifier 1943+5200 High-Power Audio Amplifier

Quantity : 1 High-concerned chemical : none Package : SOP Supply Voltage : DC 20V-90V Application : Speaker Type : Module Brand Name : DIY NOW Origin : Mainland China Condition : New

Features: 1. Single channel 400W high-power output, good sound quality, strong driving force 2. Using A1943/C5200 high-power tube, stable and reliable performance 3. Supports DC ± 20-90V wide voltage supply, suitable for various power environments 4. Dual differential circuit design, pure sound quality with low distortion 5. Onboard relay effectively protects speaker safety Product Introduction ： This board is a single channel post amplifier board. If dual channels are required, two boards need to be used together. The circuit design uses A970/C2240 high-voltage audio pair tube dual differential circuit and A1145/C2705 for voltage amplification, promoting the use of medium power pair tubes A1837/C4793. The output stage uses A1943/C5200 high-power pair tubes. Wide power supply range, DC ± 20V-90V can be used, as long as the power supply is sufficient, the power can easily reach 400W. Good sound quality, extremely strong driving force, no pressure to drive 15 inch speakers! Attention: Do not use switch mode power supply!!! Parameters: Power supply: Dual voltage, DC ± 20-90V (recommended to use below 90V, do not challenge the voltage limit). ） Actual power: undistorted power of 400W, maximum power of 600W. Amplifier board size: 195mm * 60mm * 45mm (length * width * height) Application scenarios: High power audio scenarios such as DIY speakers, home theaters, stage amplifiers, active speakers, and driver loudspeakers. Package Include: 1X amplifier board

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