Audio-Technica System 20 PRO Digital Wireless System

System 20 PRO Overview

The Audio-Technica System 20 PRO is a digital 2.4 GHz wireless microphone system designed for dependable, high-quality audio with plug-and-play operation. It offers scalability up to 20 channels and simplifies wireless setups by eliminating the need for complex frequency coordination and intermodulation calculations.

Key Features

• Digital 24-bit/48 kHz wireless operation for superior sound quality.
• 2.4 GHz range, free from TV interference.
• Switchable modes: Standard (10 channels) for minimal latency or HD (20 channels) for maximum channel count.
• Receiver units can be docked in the chassis or mounted remotely up to 328 feet away via Ethernet cable.
• Up to five chassis can be linked for simultaneous use.
• Each receiver channel supports pairing with up to four transmitters for instant switching.
• Chassis System ID Display provides RF signal level, system ID, transmitter battery level, and link status.
• Half-rack receiver chassis includes rack ears for single or dual chassis mounting.
• Compatible with Audio-Technica's Wireless Manager software for centralized management.
• Auto-lock function prevents unintended operations.
• AES128 encryption for secure transmission.
• Syslog protocol compatibility.
• OLED screens on transmitters and receivers for clear display of settings and alerts.
• Water- and sweat-resistant cW-style connector on body-pack transmitters.
• Charging terminals on transmitters compatible with ATW-CHG3a and ATW-CHG3Na charging docks.
• Supports mixed output for systems with limited input channels.

System Components and Descriptions

ATW-R1440 Receiver Chassis

The half-rack receiver chassis houses a receiver unit. It features a front-panel display showing operation mode, link/network status, RF signal strength, audio level, and transmitter battery levels. The rear panel includes RJ12 connectors for linking up to five chassis, four balanced 3-pin XLR-M outputs (channel 4 configurable as mixed output), and an RJ45 network port. It can be powered by 12-18V DC. The chassis comes with rack ears for mounting.

ATW-RU14 Receiver Unit

This receiver unit features four detachable antennas with SMA connectors. The rear has a 1/4" camera thread for remote mounting and an RJ45 connector for connecting to the chassis via a LAN cable (Cat 5e or higher) up to 100m (328 ft). A status LED indicates pairing and connection status. A holder is supplied for remote mounting.

ATW-T1401 Body-Pack Transmitter

This transmitter features two built-in antennas, microphone and line level inputs, and a water- and sweat-resistant 4-pin HRS-type locking connector for lavalier or headworn microphones. It is powered by two AA batteries and can be recharged in compatible charging docks. A slide-to-mute switch and an OLED display showing ID, gain, and battery levels are included. A multicolor LED indicates pairing and mute status.

ATW-T1402 Handheld Microphone Transmitter

Equipped with a dynamic hypercardioid capsule, this transmitter offers consistent audio quality. It features a slide-to-mute switch and an OLED display. The power/pairing button is located at the end of the handle. It operates on two AA batteries and includes a multicolor LED indicator. A heavy-duty stand clamp is included.

ATW-T1406 Boundary Microphone Transmitter

This transmitter features a cardioid condenser element and a programmable talk switch (toggle mute/unmute, touch-to-talk, touch-to-mute, or disabled). It has two multicolor LED indicators for status and an OLED display. Powered by a built-in lithium-ion battery, it is charged via USB-C. It supports up to four transmitters paired with a single receiver unit.

ATW-T1407 Desk Stand Transmitter

This transmitter has a 3-pin XLR-F gooseneck microphone connector, supporting quick-mount gooseneck microphones and providing 24V DC phantom power. It features a programmable talk switch, two multicolor LED indicators, and an OLED display. Powered by a built-in lithium-ion battery, it is charged via USB-C. It supports up to four transmitters paired with a single receiver unit.

Architect's and Engineer's Specifications

Operating Frequencies: 2.402 GHz to 2.480 GHz ISM band.

Audio Sampling: 24-bit/48 kHz.

Latency: 2.8 ms (Standard mode), 6.7 ms (HD mode).

Transmission: Digital 24-bit audio with primary and time-shifted frequencies for error correction.

Antennas: Two antennas per receiver unit and transmitter for true diversity.

Receiver Chassis (ATW-RC14):

• Dimensions: 209.8 mm (W) x 165.6 mm (D) x 42.5 mm (H).
• Output Level: LINE max +22 dBu, MIC max -12 dBu.
• Power: 12 V DC, 0.5 A (AC adapter).
• Connections: RJ45 (Network), RJ12 (Link IN/OUT), 4x XLR-M (Outputs).

Receiver Unit (ATW-RU14):

• Modulation: GFSK.
• RF Output Power: 10 mW EIRP.
• RF Sensitivity: -90 dBm typical.
• Antenna: 1/2 wave dipole, true diversity.
• External Connection: RJ45.
• Dimensions: 86.0 mm (W) x 70.2 mm (D) x 18.7 mm (H).
• Weight: 77 g.

Body-Pack Transmitter (ATW-T1401):

• Modulation: GFSK.
• RF Output Power: 10 mW EIRP.
• RF Sensitivity: -90 dBm typical.
• Input: 4-pin locking connector (GND, INST, MIC, DC BIAS).
• Battery: 3 V DC (2x AA).
• Battery Life: Approx. 15 hours (alkaline), 14.5 hours (Ni-MH), 29 hours (lithium).
• Dimensions: 63.7 mm (W) x 22.7 mm (D) x 107.4 mm (H).
• Weight: 80 g (without batteries).

Handheld Microphone Transmitter (ATW-T1402):

• Modulation: GFSK.
• RF Output Power: 10 mW EIRP.
• RF Sensitivity: -90 dBm typical.
• Microphone: Dynamic, Hypercardioid.
• Battery: 3 V DC (2x AA).
• Battery Life: Approx. 18 hours (alkaline), 16.5 hours (Ni-MH), 35 hours (lithium).
• Dimensions: 265.0 mm x 53.7 mm.
• Weight: 300 g (without batteries).

Boundary Microphone Transmitter (ATW-T1406):

• Modulation: GFSK.
• RF Output Power: 10 mW EIRP.
• RF Sensitivity: -90 dBm typical.
• Microphone: Condenser, Cardioid.
• Max Input SPL: 139 dB SPL.
• Battery: Built-in 3.7V lithium-ion (5.5Wh, 1460mAh).
• Battery Life: Approx. 12 hours.
• Charging: USB Type-C.
• Dimensions: 90.5 mm (W) x 129.4 mm (D) x 31.9 mm (H).
• Weight: 510 g (including battery).

Desk Stand Transmitter (ATW-T1407):

• Modulation: GFSK.
• RF Output Power: 10 mW EIRP.
• RF Sensitivity: -90 dBm typical.
• Microphone Connector: 3-pin XLR-F for gooseneck mics.
• Phantom Power: DC24V.
• Battery: Built-in 3.7V lithium-ion (5.5Wh, 1460mAh).
• Battery Life: Approx. 12 hours (no LED), 8 hours (with LED).
• Charging: USB Type-C.
• Dimensions: 90.5 mm (W) x 129.4 mm (D) x 47.6 mm (H).
• Weight: 490 g (including battery).

System Compatibility: Up to four transmitters (any type) can pair with a single receiver unit.

Encryption: AES128.

Software Management: Compatible with Audio-Technica Wireless Manager software.

Firmware Updates: Via Wireless Manager software, receiver chassis RJ45, or transmitter USB-C.

Available System Configurations

• ATW-1421 - Dual Body-Pack System
• ATW-1421/L - Dual Lavalier Microphone System
• ATW-1422 - Dual Handheld Microphone System
• ATW-1423 - Dual (Handheld and Body-Pack) System
• ATW-1423/L - Dual (Handheld and Lavalier Microphone) System
• ATW-1426 - Dual Boundary Microphone System
• ATW-1427 - Dual Desk Stand Transmitter System

Manufacturer Information

Audio-Technica Corporation
www.audio-technica.com
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