APD87 Mono LM3886 Amplifier Module 50W / 8 Ohm

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:

• Continuous Power: 50W / 3Ω +/- 35V
• 100W / 4Ω +/- 28V
• Signal to Noise Ratio: ≥ 92dB
• Input Impedance: 47kohm
• Total Harmonic Distortion Rate: 0.1% (20Hz-> 20KHz)
• Supply Voltage Recommended: ± 28-35V DC (Transformer between 20V and 25V AC)
• Total Dimensions: 135 x 62 x 42mm (L x W x H)
• Weight: 120g

Technical drawing (PDF)

Mounting diagram: