1. High power output, up to 300W, easily drives large speakers.
2. Uses high-voltage audio transistors for clear sound quality and strong stability.
3. Wide power supply range, supports ±20V-90V, suitable for various power environments.
4. Powerful drive capability, effortlessly drives 15-inch speakers with outstanding performance.
5. Compact size for easy installation, suitable for various audio systems.
This is an upgraded version of the single-channel amplifier board 1943+5200 high-power transistor power amplifier board. The board is a single-channel power amplifier board; for stereo applications, two amplifier boards are required. The circuit design employs A970/C2240 high-voltage audio transistors in a dual differential configuration, with A1145/C2705 for voltage amplification. The drive stage uses medium-power transistors A1837/C4793, while the output stage employs A1943/C5200 high-power transistors; The power supply range is wide, supporting DC ±20V to 90V. As long as sufficient power is supplied, it can easily achieve an output power of 300W, with extremely strong driving power, effortlessly driving a 15-inch speaker.
Supply voltage: DC ±20-90V (recommended range: ±20V-75V; do not exceed the voltage limit; do not use a switching power supply.)
Output power: 300W (8Ω enclosure)
PCB board dimensions: 150mm x 75mm
1x amplifier board
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