Classroom listening and broadcasting system
Update：2018/6/21 23:05:39
- Brand Entertainment audio products:
- Model Classroom listening and broadcasting system
Introduction
Overview of SunRing classroom listening and broadcasting system
Three spirit (SunRing) classroom listening broadcast system based on four core bus transmission, specifically for the school classroom listening test, hearing test, etc., each classroom can form an offline listening radio system, can also with the campus broadcast system of network classroom listening radio system.
At present, most school listening tests are conducted based on campus FM radio, which has many drawbacks, such as: easy to be interfered, poor quality of voice, low cost of cheating in exams, etc.
Three spirit for electronic products use place, pay attention to user experience, get rid of too much red tape set and flashy function, to create "practical, efficient and stable" classroom listening broadcast system, this system adopts three ling electronic independent intellectual property rights of digital audio technology, desk extension, professional headphone amplifier was used in this guarantee clear timbre thick.
System features:
· the desk extension on each row of seats is connected by a four-core bus;
· each classroom is equipped with a separate audio junction box, which can adjust the volume separately;
· the desk extension in each position can control the volume independently;
· each audio junction box has ten separate audio output ports, which can connect up to 100 desk extensions.
Audio junction box:
· input interface: local RCA stereo line input and network broadcast terminal audio input.
· output interface: there are 10 independent 4-core bus output ports, each of which can connect up to 10 desk extension machines.
Desk extension:
· volume adjustment: each desk extension can adjust the volume by pressing the button;
· volume display: two digital tubes display the current volume synchronously;
· audio quality of the extension: the professional power amplifier scheme of the febrile headset is adopted to ensure perfect sound quality;
· external interface: 3.5mm stereo headphone jack;
· automatic standby: the desk extension will automatically turn off the digital display when there is no operation or the earphone is unplugged.
System products:
Intercom equipment: ls-j, ls-a1 and so on.
System wiring diagram:
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