This amplifier is capable of devivering very clean sound, although the capacitor in photo is diferent in size and color from the real one, also the size dont match the description.
The real size is 120mm x 51mm x 25 mm.
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The amplification module APD87 is based on 3 high-performance circuits LM3886 developed by National SemiConductor.
Working in Class AB, and capable of 50W continuous power under a load of 8Ω, this trio of transistors can reach 400W peak, with a coherent harmonic distortion rate of only 0.1%.
With a thermal and electrical stability, the 4145 is equipped with a double protection system sophisticated surge protection (proprietary technology Spike™) and undervoltages, the latter occurring when the power supply drops below 12V.
The filtering of the transistors uses 2 electrolytic capacitors of 63V / 470μF. An MKP capacitor of 2,2uF / 400VDClocated at the input to suppress the DC component of the signal.
WARNING :This product requires the use of a passive radiator of appropriate size.
Some components may vary according to delivery.
Specifications:
Mounting diagram:
1:Output HP + | 5:Power supply + V |
2:HP GND Output | 6:Entry + |
3:Power supply -V | 7:Input GND |
4:Power supply GND |
Input | Screw terminals |
Output | NC |
Channel | 1 (Mono) |
Class | Class A / AB |
Amplifier chip | LM3886 |
Power (W) | 200.0 |
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