Shure AD4D Axient Dual Channel Digital Receiver

These professional, digital, UHF wireless systems are intended to provide reliable RF reception and clear audio suited to single or multi-channel use in applications such as touring, broadcast, theatre, conferences or presentations.

All receivers and transmitters share a wide bandwidth of 470 – 636MHz, so the Axient Digital series can be transported from location to location, re-tuning to country or area-specific bands without the need for country-specific hardware – particularly useful for touring. Redundancy is also a main feature of the Axient Digital series, offering the facility of redundant RF, DANTE and audio output. Redundant power is available via an optional DC power module factory installed at time of order.

The audio signal is converted from analogue to digital, so no compression, EQ, or other processing is required in preparation to transmit the audio with a flat frequency response of 20Hz-20kHz before two identical signals are transmitted on independent frequencies. The AD4D or AD4Q receiver can then switch between the two frequencies to retain the best signal and therefore the best audio quality.

When switching between the two frequencies, the Axient system samples the last received data on the first frequency to ensure a seamless change. A standard transmission mode results in a latency of 2ms from transmitter to receiver analogue output. A high-density mode returns a latency of 2.9ms. AES (Advanced Encryption Standard) 256-bit technology is also employed to ensure the transmission signal is secure.

Frequency band: 470-636 MHz (G56).