New LM3886 dual channel 50W * 2 hifi diy amplifier board With protective circuit

Product details:

LM3886TF highly reliable chip.
Full DC circuit design without coupling and decoupling capacitors, with transparent sound quality.
On board built-in rectification filtering and horn protection.
2 brand new genuine LM3886TF chips.
50v10000uF Rubycon capacitor from Japan.
Omron high current protection relay.
The audio channel adopts Japanese KOA resistors.

Parameters: Measurement when powered by AC28V, with 8 ohms and 800 watts load test


Output effective value: 20.6Vrms Increasing the power supply voltage can increase the output
Channel gain: 27.0dB 22.5x
Signal to noise ratio: 112dB
Dynamic range: 112dB
THD distortion: 0.0032%
THD+N distortion: 0.0066%
Frequency response bandwidth: ± 0.058dB
Input sensitivity: 920mV
Output power: 50W/8 ohms 68W/4 ohms
PCB size: 136 * 87mm

List：

Finished LM3886 amplifier board x 1