ZHC348-4020SZ/RCA Intelligent Audio Switcher

Product Description

ZHC348-4020SZ/RCA smart audio switcher is a professional broadcast audio switching device, it supports 4-way unbalanced analog audio input (RCA interface, support add music), after switching, 2-way unbalanced analog audio distribution output (RCA interface ); with manual and automatic switching modes, in the manual state, you can easily select the desired audio channel through the button, and in the automatic mode by intelligently judging the channel audio state and switching, it is an excellent audio switching device.

Technical Features

◆ High-speed MCU processor control, reliable performance

◆ Color display dynamically displays input and output audio level bar graph

◆ Convenient and efficient network (TCP/IP)/RS232 control interface

◆ Reliable power-off main circuit straight-through function

◆ Custom switching time and switching threshold

Technical Specifications:

1. Analog audio input level -30dBu ~ +15dBu

2. Analog audio output level -30dBu ~ +15dBu

3. Working frequency 20Hz～20KHz

4. Audio signal-to-noise ratio ≥90dB

5. Audio frequency response ≤±0.2dB

6. Audio distortion ≤0.02%

7. Audio stereo separation ≥70dB

8. Audio left and right level difference ≤0.02dB

9. Power supply voltage AC100V～AC265V/47Hz～63Hz

Physical Specifications:

1. Chassis standard 19 inches

2. Chassis size 1U (440mm×300mm×44mm)

3. The weight of the whole machine is 1.8KG

4. Operating ambient temperature -10℃～+50℃

5. Relative humidity <95%

6. Altitude <4500m