Audio-Technica ATW-R900A System 9 wireless system receiver.

Product Overview

The Audio-Technica ATW-R900A is a single-channel, frequency-agile VHF receiver for the System 9 wireless platform. It offers four selectable, frequency-coordinated VHF channels, so up to four System 9 systems can operate simultaneously when each is set to a different frequency. An advanced dipole antenna design extends operating range, and balanced XLR plus unbalanced 1/4-inch outputs allow connection to a wide range of mixers and audio gear. It pairs with System 9 handheld or bodypack transmitters, sold separately, for sound reinforcement applications.

Product Description

The ATW-R900A serves as the receiver component of Audio-Technica's System 9 frequency-agile VHF wireless platform. Although it is a single-channel receiver, its frequency-agile design lets you select any one of four coordinated VHF frequencies: 169.505, 170.245, 171.045, and 171.905 MHz. Because these channels are pre-coordinated, you can run as many as four System 9 systems together by assigning each its own frequency, which suits small multichannel setups such as presentations, panels, and houses of worship. The receiver is built for reliable performance and durable construction in everyday sound reinforcement use.

An advanced dipole antenna improves operation by adding a ground element alongside the usual signal element, helping extend operating range and stabilize reception. Front-panel volume control and AF Peak, RF, and power indicator lights give clear status feedback during operation. Balanced XLR and unbalanced 1/4-inch output jacks make the ATW-R900A compatible with a broad range of mixers, powered speakers, and recording gear. To pair it with compatible transmitters and System 9 components, see our ATW-R900A wireless receiver listing.

Key Features

• Frequency-Agile VHF Operation — Select any one of four coordinated VHF frequencies to avoid interference and coordinate multiple systems.
• Four Coordinated Channels — Operate up to four System 9 systems at once by assigning each a different frequency (169.505, 170.245, 171.045, 171.905 MHz).
• Advanced Dipole Antenna — The dipole antenna design adds a ground element to extend operating range and improve reception stability.
• Balanced and Unbalanced Outputs — Balanced XLR and unbalanced 1/4-inch output jacks connect to a wide variety of audio gear.
• Status Indicators and Volume Control — Front-panel volume control plus AF Peak, RF, and power indicator lights provide clear operational feedback.
• Transmitter Compatibility — Works with System 9 handheld or bodypack transmitters, sold separately, for live sound reinforcement.

Technical Specifications

Specifications sourced from Audio-Technica (audio-technica.com).