Dongguan Songshan Lake No.1 Middle School is a brand-new modern public junior high school equipped with advanced multimedia classrooms and technology-rich smart laboratories, committed to building a modern educational space that deeply integrates technology, humanity and nature.
During the construction of the new campus, the school made its requirement clear: the classroom audio system should not be merely a "sound reinforcement tool", but an integral part of the smart classroom - it must deliver every teacher's voice clearly and stably to every student, and at the same time fit into the campus-wide smart operation and maintenance system. After careful comparison of multiple options, the school selected the Relacart IMIC-6 dual-channel true diversity wireless education microphone system for the sound reinforcement upgrade of its multimedia classrooms and the routine "one teacher, one microphone" deployment.
Audio Pain Points in Education Scenarios
Audio usage in primary and secondary school classrooms differs significantly from that in studios or lecture halls. In the early-stage research, the school identified the following core requirements:
Limited mobility: Teachers move frequently between the podium, blackboard and student seats. Handheld microphones restrict body language, while lavalier microphones bring daily burdens of wearing, adjustment and retrieval.
Frequent interference: Classrooms are filled with smart panels, interactive flat panels, computers, loudspeakers and other electronic devices, posing interference risks to wireless audio transmission.
Unbalanced sound: Classroom acoustics contain a certain amount of reverberation. Traditional sound reinforcement is prone to howling, and uneven sound pressure between the front and back rows affects the listening experience.
Scattered maintenance: When many classrooms are upgraded at once, unified management, status monitoring and fault warning of scattered devices become a real challenge for the IT center.
High operation threshold: Front-line teachers are not audio professionals. The system must be "ready to use once powered on" - pick it up and speak, with no complicated adjustment.
The Relacart Solution: IMIC-6 Dual-Channel True Diversity Wireless Education Microphone System
Addressing the actual needs of Songshan Lake No.1 Middle School, Relacart provided a classroom audio solution centered on the IMIC-6. The IMIC-6 is a true diversity dual-channel wireless education microphone system independently developed by Relacart. It has a built-in dual-channel wired microphone input, supports USB digital output, and comes with a laser presenter and an intelligent charging dock. It also supports paging input, alarm input, central control interface, microphone lock, howling suppression and other functions, and is widely applicable to education, lectures, conferences, broadcasting and other scenarios.
True Diversity Reception Eliminates Signal Dropouts
Dual-channel true diversity reception: The IMIC-6 adopts a dual-channel true diversity reception system, which reduces noise and sound leakage caused by RF interference. It can also be connected to Relacart's classic antenna distribution system to share antennas among multiple devices, extending reception distance and improving signal stability. For classrooms with complex electromagnetic environments, this design physically guarantees dropout-free teaching.
Dedicated Software Management: MICLASS HUB
The IMIC-6 works with dedicated management software for centralized remote control. It displays device working status, battery level, name and channel, performs charging-dock unlock/lock, and controls parameters such as EQ, FBK, channel lock, volume display, volume adjustment and mute. It also manages the AUX auxiliary input, PAGE paging input, USB audio input, MAIN main audio output and USB audio output, providing centralized management of the entire wireless microphone system.
Howling Suppression and DSP Processing for Clear Sound
DSP audio processing algorithm: built-in high-pass and low-pass filters and parametric EQ;
Howling suppression: eliminates classroom howling and optimizes the vocal band so that even students in the back rows hear every sentence clearly;
Professional audio processing: volume detection, audio matrix, volume control and more.
Compact Magnetic Transmitter: Zero Burden for Teachers
The wireless transmitter of the IMIC-6 is extremely compact, with a unique magnetic soft clip on the back. It can be clipped to a collar or attached to the blackboard or any other metal surface, instantly turning into a fixed microphone. Teachers can wear it while lecturing and attach it to the board frame while writing, keeping voice pickup uninterrupted - putting an end to the industry pain points of handheld microphones tying up both hands and lavalier microphones being hard to manage.
Built-in Laser Presenter for Teaching Needs
The WL-6 laser presenter bundled with the IMIC-6 integrates page turning and laser pointing. When teachers walk around the podium explaining courseware, they no longer need to return to the computer or carry a separate presenter - one device handles both "voice pickup and screen control".
Intelligent Charging Dock Enables "One Room, One Microphone"
The IMIC-6 comes with a dedicated intelligent charging dock. Once the transmitter is inserted, it automatically pairs with the receiver; the dock has a locking function to prevent loss. This design perfectly supports the "one room, one microphone" or "one teacher, one microphone" campus deployment - each classroom is equipped with one system, teachers simply pick it up and use it when rotating between classrooms, and devices are automatically charged and locked when returned, greatly reducing the school's equipment management cost.
Campus Centralized Control: Building a Smart Audio Data Flow
The classroom audio system truly becomes part of the campus-wide smart operation and maintenance system, serving as an audio data node of the smart campus.
RS-485 central control interface: The IMIC-6 provides an RS-485 control interface, alarm trigger input and paging input ports, allowing data to be uploaded directly to the central control system;
Centralized audio data management: With a centralized O&M management system, administrators can oversee all data of the campus audio system right from the management room;
Paging linkage and alarm response: When campus paging starts, the microphone system automatically yields to the paging signal; when a fire alarm sounds, all output audio is muted automatically until the alarm is cleared.
Application Value
Freedom for teachers: the magnetic transmitter plus built-in laser presenter allow free movement, board writing and interaction, completely removing the constraints of handheld microphones;
Zero learning curve: clip the transmitter to the collar and start teaching - no professional training required;
Clear and stable sound: true diversity reception, DSP processing and howling suppression ensure clear, noise-free and howl-free reinforcement in every classroom;
Minimal management: the locking and auto-pairing charging dock makes device management effortless under the "one room, one microphone" model;
Centralized O&M: the RS-485 control interface with paging and alarm linkage integrates the classroom audio system into the campus smart control platform;
Investment protection: multiple audio output interfaces and optional Dante protocol allow the new system to connect seamlessly with the school's existing audio architecture.
The IMIC-6 is not just a classroom sound reinforcement system, but a centralized node of campus audio data flow - leaving standard, open and expandable interfaces for the school to build a campus-wide smart audio O&M platform in the future. The system is now officially in service and has received unanimous praise from teachers and students!
