The ATW-R1440 from Audio-Technica is a System 20 PRO quad wireless receiver designed for professional audio installations requiring flexibility, scalability, and high-performance digital transmission. Housed in a half-rack chassis, it is capable of receiving up to four transmitters simultaneously, making it ideal for conference facilities, educational institutions, corporate environments, and live event applications.

Each receiver channel can be paired with up to four transmitters, allowing users to switch instantly between different transmitter configurations without complicated re-pairing procedures. The system supports two operating modes: Standard mode, which allows up to 10 simultaneous channels with ultra-low latency of 2.8 ms, and HD mode, which supports up to 20 simultaneous channels with a latency of 6.7 ms. Both modes operate with 24-bit/48 kHz digital audio sampling, delivering clear and natural sound reproduction across a system frequency response of 20 Hz to 20,000 Hz, depending on the microphone used.

The ATW-R1440 operates in the 2,402 to 2,480 MHz range and offers a wide 120 dB dynamic range (A-weighted, typical) with total harmonic distortion of less than 0.05% under typical conditions. For secure transmission, the system incorporates AES 128-bit encryption, ensuring protected audio communication. Receiver units can be docked directly into the chassis or mounted remotely up to 328 feet away via Ethernet cable, providing installation versatility. Up to five chassis can be linked and used simultaneously to expand system capacity.

Users can monitor transmitter status, audio levels, remaining battery time, and other system information through A-T Wireless Manager software. An auto-lock function is included to prevent unintended operational changes, enhancing reliability in professional environments. Overall, the ATW-R1440 offers a scalable, secure, and high-quality digital wireless solution tailored for modern multi-channel audio setups.