Audio-Technica ATW-R1440 System 20 PRO Four-Channel Receiver

The ATW-R1440 is the four-channel receiver for Audio-Technica's System 20 PRO. It works in the licence-free 2.4 GHz band, so there is no UHF coordination, no band-plan check and no re-tuning when the system travels to another state - the reason this range keeps turning up in schools, houses of worship and corporate rooms with no RF technician.

It operates on 2,402 to 2,480 MHz with AES128 encryption, passing 20 to 20,000 Hz audio at 24-bit/48 kHz with 2.8ms of latency and < 0.05%, typical of distortion. The recommended channel count is 10 channels. Receivers stack or rack together as a system grows.

Operating Frequencies	2,402 to 2,480 MHz
System Frequency Response	20 to 20,000 Hz Varies depending on the microphone to be installed.
Dynamic Range	120 dB (A-weighted), typical
Total Harmonic Distortion	< 0.05%, typical
Maximum Simultaneous Use (recommended)	Standard: 10 channels HD mode: 20 channels It depends on the region and environment.
Delay	Standard: 2.8ms HD mode: 6.7ms
Audio Sampling Rate	Standard: 24-bit/48 kHz HD mode: 24-bit/48 kHz
Encryption Method	AES128