DC 20~90V Mono Amplifier 300W High Power HiFi Audio Amplifier Board with Speaker Protection Function Home Theater Amplifier

Number of channels : 1 High-concerned chemical : none Control Method : Others Parts : Amplifier board Package : Yes Channels : 1 Maximum Power Per Channel : Above 200W Brand Name : occkic Origin : Mainland China Certification : CE

Features: 1. High power output, up to 300W, easy to drive large speakers. 2. Adopting high pressure audio tube, the sound quality is clear and stable. 3. Wide power supply range, supporting ± 20V-90V, suitable for various power environments. 4. Strong driving force, easy to drive 15 inch speakers, excellent performance. 5. Compact size, easy to install, suitable for various audio systems. Product Introduction: This is an upgraded version of the single channel amplifier board 1943+5200 high-power tube amplifier board. The board is a single channel amplifier board, and for those who need dual channels, two amplifier boards are required. The circuit design uses A970/C2240 high-voltage audio tube dual differential circuit and A1145/C2705 for voltage amplification, promoting the use of medium power tube A1837/C4793, and the output stage uses A1943/C5200 high-power tube; The power supply range is wide, with a DC of ± 20V-90V. As long as sufficient power is supplied, it can easily achieve an output power of 300W. The driving force is extremely strong, and there is no pressure to drive a 15 inch horn. Parameter: Power supply voltage: DC ± 20-90V (recommended use: ± 20V-75V) Do not challenge the voltage limit, and switch mode power supply cannot be used for power supply. ） Output power: 300W (8 Ω box) PCB board size: 150MM * 75MM Package Include: 1X power amplifier board label:yes