Audio Technica ATW-1421/ATM75cw System 20 PRO Dual Wireless Headworn Mic System
$1,349.00
A professional 2.4 GHz digital wireless microphone system designed for fast deployment and reliable operation
Delivers high-resolution 24-bit / 48 kHz audio for clear and consistent sound quality
Supports up to 20 simultaneous channels using linked receiver chassis
Selectable Standard mode for low latency or HD mode for maximum channel capacity
Each receiver channel can pair with up to four transmitters for flexible setups
Allows remote receiver mounting up to 328 ft (100 m) via Ethernet
AES128 encryption ensures secure transmission in professional environments
Centralized management through Wireless Manager software simplifies system control
- Description
Description
Audio-Technica System 20 PRO 2.4 GHz Digital Wireless Microphone System
The Audio-Technica System 20 PRO advances 2.4 GHz wireless microphone technology with exceptional functionality, scalability, and ease of use. Designed as a self-managing, plug-and-play solution, the system supports up to 20 simultaneous channels while delivering consistent, high-quality audio in virtually any environment. It eliminates the complexity of traditional wireless setups by removing the need for frequency coordination, intermodulation calculations, and remote antenna cabling.
At the heart of the system is the ATW-R1440 receiver, capable of handling up to four transmitters per channel for highly flexible operation. Receivers can remain docked in a half-rack chassis or be mounted remotely up to 328 ft (100 m) away via Ethernet cable, allowing clean installations across large venues or distributed systems. Up to five chassis can be linked using the included RJ12 cable, enabling stable multichannel operation with as many as 20 channels in use simultaneously.
The system offers selectable operating modes to suit different performance requirements. Standard mode supports up to 10 channels with minimal latency, while HD mode expands capacity to 20 channels for larger deployments. Setup, monitoring, and system control are streamlined through Audio-Technica’s Wireless Manager software, which can manage multiple UHF, 2.4 GHz, and DECT wireless systems from a single interface.
With AES128 encryption for secure transmission, paired transmitters ready to use out of the box, and all-day battery operation, the System 20 PRO delivers dependable performance for corporate AV, live events, education, houses of worship, and installed sound applications.
Key Features
Digital 24-bit / 48 kHz wireless operation for professional sound clarity and reliability
Plug-and-play operation in the 2.4 GHz band, free from TV interference
Selectable Standard mode (10 channels) or HD mode (20 channels)
Remote receiver mounting up to 328 ft (100 m) via Ethernet cable
Link up to five chassis for large multichannel systems
Each receiver channel can pair with up to four transmitters
System ID display shows RF level, battery status, and link condition
Flexible rack mounting with short and long rack ears and joining plate
Centralized control using Wireless Manager software
Auto-lock function prevents accidental operation changes
AES128 encryption ensures secure wireless communication
Syslog protocol compatibility for network monitoring
Project-based configuration and management via software
OLED displays on transmitters and receivers for clear status viewing
Water- and sweat-resistant cW-style connector on bodypack transmitters
Compatible with ATW-CHG3 series charging docks
Mixed output support for installations with limited inputs
Specification
| Wireless System | |
| Operating Frequency | 2.4 GHz |
| Audio Resolution | 24-bit / 48 kHz digital |
| Operating Modes | Standard Mode (10 channels), HD Mode (20 channels) |
| Maximum Channel Count | Up to 20 channels |
| Encryption | AES128 |
| Receiver | |
| Receiver Model | ATW-R1440 |
| Transmitters per Channel | Up to 4 transmitters |
| Mounting Options | Docked in chassis or remote mounted |
| Remote Mount Distance | Up to 328 ft (100 m) via Ethernet |
| Chassis Linking | Up to 5 chassis via RJ12 cable |
| Status Display | System ID display with RF level, battery level, and link status |
| Display Type | OLED |
| Software & Control | |
| Management Software | Wireless Manager compatible |
| Multi-System Support | UHF, 2.4 GHz, and DECT systems |
| Protocol Support | Syslog |
| Auto-Lock Function | Yes |
| Transmitter & Power | |
| Pairing | Pre-paired and ready to use |
| Battery Operation | All-day use on full charge |
| Connector (Bodypack) | cW-style locking 4-pin connector, water- and sweat-resistant |
| Charging Compatibility | ATW-CHG3 / ATW-CHG3a / ATW-CHG3N / ATW-CHG3Na charging docks |
| Display | OLED |
| Output | |
| Output Type | Mixed output supported |











