DC 20V-90V 500W 400W 300W 200W Power Amplifier Board 1943+5200 Mono HIFI Paired Tube Post Stage High Power Audio Amplifier Board

DC 20V-90V 500W 400W 300W 200W Power Amplifier Board 1943+5200 Mono HIFI Paired Tube Post Stage High Power Audio Amplifier Board Mono 500W Audio Amplifier Board Product Features: 1. Adopting 1943+5200 high-power tube, with strong driving force and pure sound quality. 2. Supports DC ± 20-90V wide voltage supply, suitable for various power supply environments. 3. The undistorted power reaches 500W, with a peak output of 750W and strong performance. 4. Single channel design, dual channel requires the use of two boards. 5. Can easily drive 15 inch speakers, suitable for high-power audio systems. Product Introduction This is a single channel post amplifier board amplifier. The single channel amplifier board uses 1943+5200 high-power paired tube post amplifier. If dual channel is required, two amplifier boards are needed. The circuit design uses A970/C2240 high-voltage audio paired double differential circuit and A1145/C2705 for voltage amplification. It is promoted to use medium power paired A1837/C4793, and the output stage uses A1943/C5200 high-power paired tube. The power range is wide, and the highest voltage can support DC ± 20-90V. As long as sufficient power is provided, the actual power can reach 500W without distortion. The sound quality is good, and the driving force is extremely strong, driving a 15 inch speaker without pressure!

Product Parameters: Power supply voltage: DC ± 20-90V (recommended use: ± 20V-75V); Do not challenge the voltage limit, the power supply cannot be switched on or off. ） Output power: undistorted power of 500W, maximum power of 750W. Amplifier board size: 245mmX60mmX45mm

Packing List: 1X 500W power amplifier board Mono 400W Audio Amplifier Board Product Features: 1. High power output, up to 400W, easy to drive large speakers. 2. Adopting high pressure audio tube, the sound quality is clear and stable. 3. Wide power supply range, supporting ± 20-90V, 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 a single channel post amplifier board amplifier. The single channel amplifier board uses 1943+5200 high-power paired tube post amplifier. If dual channel is required, two amplifier boards are needed. The circuit design uses A970/C2240 high-voltage audio paired double differential circuit and A1145/C2705 for voltage amplification. It is promoted to use medium power paired A1837/C4793, and the output stage uses A1943/C5200 high-power paired tube. The power range is wide, and the highest voltage can support DC ± 20-90V. As long as sufficient power is provided, the actual power can reach 400W without distortion. The sound quality is good, and the driving force is extremely strong, driving a 15 inch speaker without pressure!

Product Parameters: Power supply voltage: DC ± 20-90V (recommended use: ± 20V-75V); Do not challenge the voltage limit, the power supply cannot be switched on or off. ) Output power: 400W (8 Ω box) Amplifier board size: 195X60X45MM (length * width * height)

Packing List: 1X 400W power amplifier board Mono 300W Audio Amplifier Board Product 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.

Product Parameters: 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

Packing List: 1X 300W power amplifier board Mono 200W Audio Amplifier Board Product Features: 1. Dual channel support: Single channel design requires two boards to achieve dual channel functionality. 2. High voltage resistance tube: A970/C2240 tube is used for pure and undistorted sound quality. 3. Wide voltage adaptation: Supports ± 20V-90V power supply, suitable for various usage scenarios. 4. Strong output power: 200W high-power output, easy to drive 15 inch speakers. 5. Classic circuit architecture: adopting classic amplifier circuit design, stable and reliable operation, ensuring long-term use without faults. Product Description: The board is a mono post amplifier board, and if dual channel is required, two amplifier boards need to be purchased for circuit design and use; A970/C2240 high-voltage audio pair tube dual differential circuit and A1145/C2705 voltage amplification are used to promote the use of medium power pair tubes A1837/C4793, and the output stage uses A1943/C5200 high-power pair tubes. Wide power supply range, DC positive and negative 20V-90V can be used, as long as sufficient power is supplied, it can easily reach 200. Good sound quality, strong driving force board, and 15 inch speaker can be pushed without pressure!

Product Parameters: Supply voltage: Dual voltage DC ± 20V-90V (recommended to use below 90V, do not challenge the voltage limit). ) Power: 200W (undistorted power) PCB board size: 120 * 60MM (length * width)

Packing List: 1X 200W power amplifier board