Audibax AWM 404 TD - 4-Channel UHF Wireless Conference System with 4 Desktop Microphones

Audibax AWM 404 TD - 4-Channel UHF Wireless Conference System with 4 Desktop Microphones

The Audibax AWM 404 TD is a professional wireless conference system that integrates a central receiver and four desktop microphones for corporate, educational, and event use. It operates in the UHF band with a PLL oscillator for stable transmission, infrared (IR) synchronization, and offers a frequency response of 50 Hz to 15 kHz with a high signal-to-noise ratio . The receiver features balanced XLR and unbalanced 1/4" jack outputs for easy integration with mixing consoles and PA systems. Each microphone is powered by two AA batteries and provides reliable coverage for medium-sized rooms, maintaining clear audio with low distortion.

Main features

• 4 independent UHF channels for simultaneous use in conferences and meetings.
• PLL synthesis and IR synchronization for fast and stable frequency adjustment.
• Operating frequency range: 640–690 MHz (according to the commercial data sheet), with a range of up to 100 m under ideal conditions.
• Frequency response: 50 Hz – 15 kHz; S/N ≥ 100–105 dB(A) and THD < 0.3% (1 kHz).
• Receiver: balanced XLR outputs (250 mV/600 Ω) and unbalanced 1/4″ jack (400 mV/K3) ; RF input sensitivity 5 dBµV ; DC power supply 12–16 V (≤ 350 mA).
• Desktop microphones: dynamic capsule, dynamic range ≥ 100 dB(A) , max. 130 dB SPL ; power supply 2 × AA (1.5 V) .
• Installation format: base/receiver suitable for central rack mounting and use on conference tables.

Product benefits

• Fast workflow: IR pairing and PLL control prevent interference and speed up assembly.
• Clean and consistent audio: 50 Hz to 15 kHz range with low noise and low distortion for intelligible speech.
• Flexible connectivity: XLR and Jack outputs for integration with mixers, matrices, or A/V systems.
• Mobility and order: four wireless workstations without microphone cabling on the table.

Use cases

• Meeting and boardrooms: clear voice with four speaker positions.
• Educational centers and training: panels, tribunals and lecture halls.
• Corporate events and public administration: conferences, press conferences and medium-sized auditoriums.

Frequently Asked Questions

• How many microphones are included? Four wireless desktop microphones and a 4-channel central receiver.
• How are the frequencies adjusted? By means of infrared (IR) and PLL synchronization, directly between receiver and transmitters.
• What outputs does the receiver have? Balanced XLR and unbalanced 1/4″ jack for connection to a console or A/V system.
• What is the battery life of the microphones? It depends on the type of batteries (AA); use high-quality alkaline or rechargeable NiMH batteries for longer battery life.

Connectivity and control

• Receiver: XLR (balanced) and 1/4″ Jack (unbalanced) outputs; 12–16 V DC power supply; consumption ≤ 350 mA .
• Micros: IR power and link, dynamic capsule, 2 × AA power supply.

Project description

4-channel UHF wireless conference system (PLL, IR synchronization); 640–690 MHz range (commercial), ideal range up to 100 m ; 50 Hz–15 kHz response , S/N ≥ 100–105 dB(A) , THD < 0.3% at 1 kHz; receiver with XLR 250 mV/600 Ω and 1/4″ 400 mV/K3 Jack outputs, 5 dBµV sensitivity, DC 12–16 V (≤ 350 mA); dynamic desktop microphones, 130 dB SPL max., 2 × AA per microphone.