AMP280 High Power Class A Mono HiFi Power Amplifier Board 5200 1943 Tube

Specification: 1. Power parameters: main AC: dual 35V or dual 43V 400W Relay protection power supply: single AC12V or single AV15V (note: each board is powered independently by a single AC12V power supply, that is, one board uses a single AC 12V power supply, three-wire with center tap is not allowed, four-wire is OK) 2. Power: 350W (Total Harmonic Distortion THD+N<0.05%), dual AC43V, 4 ohms 3. Class A 90W, measured under 4 ohm load 4. Speaker impedance: 4-8 ohms. 5. PCB size: 353*100MM. Board size: length 353*width 100*height 65MM 6. The quiescent current of the large tube is 100MA: adjust the adjustable resistor VR2 (1K) so that the voltage across the 5W/0.5R is 50MV. At this time, the quiescent current I=50MV/0.5R resistance is 100MA; if the customer’s heat sink is large enough, you can It increases the quiescent current, generally 100MA-300MA has the best sound effect. 7. 2SA1943 2SC5200 large pipe pairing Package: 1x power amplifier board

• 1. Power parameters: main AC: dual 35V or dual 43V 400W Relay protection power supply: single AC12V or single AV15V (note: each board is powered independently by a single AC12V power supply, that is, one board uses a single AC 12V power supply, three-wire with center tap is not allowed, four-wire is OK
• Power: 350W (Total Harmonic Distortion THD+N<0.05%), dual AC43V, 4 ohms
• Class A 90W, measured under 4 ohm load
• Speaker impedance: 4-8 ohms
• The quiescent current of the large tube is 100MA: adjust the adjustable resistor VR2 (1K) so that the voltage across the 5W/0.5R is 50MV. At this time, the quiescent current I=50MV/0.5R resistance is 100MA; if the customer’s heat sink is large enough, you can It increases the quiescent current, generally 100MA-300MA has the best sound effect.