L20D is the L digital series power amplifier board designed by LJM.

Class D power amplifier special driver IC IRS2092 of International Rectification Corporation and digital power amplifier special field-effect transistor IRFI4020 of International Rectification Corporation are adopted. Imported original ultra-low impedance polymer semiconductor solid capacitor is used. The polymer semiconductor capacitor has ultra-low internal resistance and ultra-low distortion.

It can output 200-300W power 8 Ω load per channel.

Parameters:

Power supply voltage: DC+- 60V to+- 80V, recommended voltage+- 70V

Output power: 250W * 2 8 Ω (+- 70V)

Voltage gain: 40

Input sensitivity: 1.6V

Noise: 200 μ V（22 Hz – 20kHz, AES17 filter Self-oscillating frequency ）

THD+N, 100W ：0.008 % 1kHz, Single-channel driven

Total Idle Power Consumption 7W No input signal

Channel Efficiency 90 % Single-channel driven, 250W

Military grade gold plated PCB process is adopted.

Original new IC IRS2092SPBF+IRFI4020H-117P