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1. The noise of the switch is small and will not have too much impact on the speaker. It is recommended to add a horn protection circuit. The horn protection circuit can not only eliminate the impact noise of the power amplifier switch machine, but also avoid the output DC burning the horn when the power amplifier is damaged.
2. The bottom noise is small. Zero floating small, do not need to do any debugging after installation, the output zero drift voltage will generally not exceed 50mv, and is relatively stable.
3. Free debugging. As long as the connection is correct, no one is wrong, basically it is a success, no need to do any debugging, beginners also have a very high success rate.
Note:
1.2SC5200 + ZSA1943 are disassemble parts,but in good condition.
2.The PCB board has change to black, but the function is same.
2SC5200 + ZSA1943 are disassemble parts,but in good condition.
Operating voltage: Dual DC 10 - 45V recommended Dual DC 35V
Rated output power: 100W(4 Ohm ± 35V)
Maximum output power: 150W (4 Ohm ± 45V) enormous heat, is not recommended
PCB size: 80 x 50 x 35mm
Pitch: 5.08mm
Hole distance between two power tube: 47mm
Package Included:
1pcs monoaudio amplifierboard








Customer Reviews
214 ratings
quick delivery (16)
excellent product (16)
poor packaging (11)
good condition (8)
good quality (7)
satisfactory service (6)
Customer photos (30)
C***y
September 8, 2026
Super qualité de fabrication, expédié très rapidement…
Buyer from United States
July 31, 2026
não comprem. vendedor me enganou. me enviou outro produto diferente
Buyer from United States
June 24, 2026
excelente
a***z
March 12, 2026
una berraquera de producto , antiguamtne le toca a uno fabricar toda la placa lo cual es bastante trabajo , hoy en dia sale mucho mas rentable comprar una de estas para ensamblar los amplificadores o reapracion de equipos de sonido y minicomponentes de los clientes por costos , tiempo diseño y trabajo super recomendable , lo unico que se estaria genial es que vendieran una version con etapa de rectificacion de una vez es lo unico
Buyer from Ukraine
September 7, 2026
Візуально все добре. Пакування невдале - не захищає елементи при транспортуванні.
Buyer from Colombia
August 19, 2026
buena calidad
2SC5200+2SA1943 Tube 100W DC 35V Mono Channel HIFI Audio Amplifier Board
Quantity:
1
Availability:







