One fiber digital input, two coaxial digital input, and one analog input.

5.1 sound channel output, 63dB electronic volume control. For each channel, +/-20dB is adjustable.

6-channel 2-order low pass filter, volume control, and input mute circuit. etc.

Adopt DA32UD or DA32UQ decoder to realize digital audio decoding function.

Six buttons (mute, information input, mode, volume +/-, and noise test).

Use TCP/IP communication protocol to realize the long distance of LED display or other network products.

Two PS2 interfaces, it is okay to connect two keyboards at the same time.

Standard RJ45 network interfaces, universal network interface can directly numerous network products.

There is no master and slave's difference between network interfaces, can connect computer, at the same time it is acceptable to transfer control signal between products without computer.

Adopt 122 × 32 dot matrix LCD display, can display Chinese and English.

Built-in RPM7038 infrared receiver, have remote control function.

One group of stereo recording signal input, one group of analog signal output.

Six operation buttons: play/pause, stop, previous, next, display information, record.

Can compose dual CPU home audio with OTG 15A , OTG15E and so on.