The L series 200W power amplifier designed by LJM uses a special CFP output and COSCODE input stage.

4 pairs of original imported KEC KTB817 KTD1047 power tubes per channel.

Ultra low distortion circuit, HIEND design standard.

All components are brand new and genuine, not loose cargo, ensuring quality.

L20.5 amplifier parameters:

Output power 200W 8R, 400W 4R+-63V power supply

125W 8R, 250W 4R+-50V power supply

250W 4R, 500W 2R+-50V power supply

Maximum output current 15A, maximum output voltage sine wave+-63V (Under+-65V power supply)

Static current 20MA per channel

Static power consumption=supply voltage * 0.02 (2W+-50V)

Power Supply Voltage Range:+-24V to+-65V

Recommended power supply voltage and radiator standards:

+-35 to+-50V, radiator 0.5KG per channel

+-40 to+-60V, heat sink 1KG per channel

Gain GAIN=31 times

Frequency response=20-25K HZ -0.15DB. 10HZ=-0.7DB 20K HZ=-0.05DB

Damping coefficient>400, 8 ohm load

Signal to noise ratio>98dB

Input sensitivity: 2V RMS 200W 8R power

Installation connection identification:

VCC+positive power supply, VEE - negative power supply, PGND power supply ground.

IN+input signal+, IN - input signal -

OUT+output signal+, the speaker negative terminal is connected to the GND position on the power board.

It is recommended to connect a light bulb in series with a 220V transformer primary for testing. Remove the light bulb and use it normally.