AKG WMS420PRESSETBDA - UHF Presenter Band A Wireless System with Beltpack, Lavalier Microphone, and Receiver

AKG WMS420 Presenter Set Band A - UHF Wireless System with PT420 Bodypack, C417 L Lavalier Microphone, and SR420 Receiver

The AKG WMS420 Presenter Set Band A is an analog UHF wireless system designed for presentations, education, theater, and corporate events where clear audio, reliable operation, and a simple workflow are essential. The set includes the SR420 half-rack receiver with detachable antennas, the PT420 bodypack transmitter , and a C417 L lavalier microphone with an omnidirectional capsule. Operating in Band A (530.025–559.000 MHz) , it supports up to eight compatible channels within the same band, antenna switching for diversity, and a tuning bandwidth of up to 30 MHz. Noise management and reception are simplified with adjustable squelch and status LEDs, while the bodypack offers up to eight hours of use on a single AA battery and includes charging ports for rechargeable batteries. The C417 L lavalier microphone offers a wide, natural response (20 Hz–20 kHz), an ultra-compact size, and clip-on earcups for discreet placement.

Main features

• Working band: Band A UHF 530.025–559.000 MHz, FM modulation.
• Multi-channel capability: up to 8 compatible channels within the same band.
• Diversity: Antenna switching for stable reception.
• Range: 30 m line of sight (possible longer range with external antennas).
• SR420 Receiver: 1/2 rack (19"), detachable BNC antennas, balanced XLR and unbalanced 6.3 mm jack outputs, adjustable squelch and RF/clip LEDs.
• PT420 Transmitter (beltpack): 3-pin mini XLR input, gain control, silent on/mute/off switch, up to 8 h with 1x AA, charging contacts.
• C417 L Lavalier Microphone: Omnidirectional condenser, 20 Hz–20 kHz, mini size for discreet placement, includes clip and windscreen.
• Transmitter RF power: 10/20/50 mW (depending on band).
• Scalability: Optional antennas and RF distribution for multi-channel systems.

Product benefits

• Natural and understandable audio thanks to the C417 L lavalier with omnidirectional pattern, ideal for spoken voice without coloration marked by head movements.
• Quick assembly : half-rack receiver with detachable antennas and professional outputs for integration into mixing consoles, interfaces or matrices without adapters.
• Economical operation : up to 8 hours with one AA battery and direct recharging possible using the optional charger.
• Robust system : antenna switching diversity and adjustable squelch to minimize dropouts and noise in demanding RF environments.
• Scalable : Compatible with distributors and active/passive antennas to grow to stable multi-channel configurations.

Use cases

• Presentations and conferences in auditoriums, meeting rooms, and conventions.
• Educational centers and lecture halls with daily use and rotating speakers.
• Theatre and worship , where a discreet microphone and freedom of movement are required.
• Corporate events and streaming with direct integration to installed mixers, interfaces, and AV systems.

Compatibility and accessories

The SR420 supports remote antennas and RF distribution via accessories such as splitters, directional/omnidirectional antennas, and boosters, facilitating professional installations with multiple rack-mounted receivers. The PT420 is compatible with AKG's microMic range (lavalier, headset, and instrument) via the 3-pin mini XLR connector.

Note: Please verify frequency availability and spectrum usage regulations in your country/region before implementation.

Description for projects

AKG WMS420 Presenter Set Band A (530.025–559.000 MHz) analog UHF wireless system with SR420 1/2 rack receiver, balanced XLR and 6.3 mm jack output, detachable BNC antennas, antenna diversity switching, up to 8 compatible channels; PT420 bodypack with 3-pin mini XLR input, gain control, 1x AA (≈8 h), charging contacts; C417 L lavalier omnidirectional condenser 20 Hz–20 kHz with clip and windscreen; 40 Hz–20 kHz audio bandwidth, 10/20/50 mW RF power (band dependent), typical range 30 m LOS.