Neutrik - NX4TRX

Xirium Base Station 4 channels of Tx or Rx.  Xirium is a digital wireless system designed to replace analogue audio cables in situations where it may be difficult or inappropriate to run a cable, but where a stable connection and audio quality must be maintained. The system is suitable for conferences, live events and music performance and offers a solution for venues where cables are difficult to hide and trip hazards must be avoided including churches, historic buildings, museums, hotels and colleges.

Operating in the license-exempt 5GHz frequency band, the system can send or receive up to eight channels of uncompressed, studio quality, 24 bit, 48 kHz audio with only 3.4 milliseconds latency per circuit. Neutrik's in-house designed DIWA (Digital Wireless Audio) transmit and receive protocol, together with patented FEC forward error correction, results in robust, noise-free operation, even in the presence of heavy local RF traffic. To maximise RF coverage, the diversity antenna system can be augmented with optional, directional antennas. The system is designed for line of sight operation.

The Xirium TRX base station automatically selects the best available channel and, once transmission is established, denies use of that channel to other RF traffic. Channel numbers may be overridden if a particular frequency is preferred.

• RF carrier: IEEE 802.11a, 5.15-5.25 GHz, channels 36-48, license-free
• Data protocol: Proprietary (DIWA technology)
• Range: Typically 30m line of sight, up to 300m point-to-point
• Data transmission: 24 bit, 48 kHz, compression free
• Latency: 3.4mS
• TRX antenna: Two half-wave dipoles with SMA M. connectors
• Audio channels: 4 per TRX unit, (8 maximum, with two linked TRX units)
• Broadcast mode: 3 receivers per audio channel (12 per TRX unit, RX mode only)
• Response: 20 Hz - 20 kHz +0.5 -1.5dB, referred to 1 kHz
• Distortion: Better than 0.01% THD + noise, 1 kHz, +4dBu, TX gain minimum
• Dynamic range: Better than 105dB, 1 kHz, A-weighted
• Crosstalk: Better than -90dB, 20 kHz