Symetrix has announced the Radius NX 4x4 and Radius NX 12x8 audio signal processors, supporting 128 (64x64) channels of redundant Dante network audio and ultra-low-noise preamps with digitally-defined 3dB gain steps.

Symetrix Radius NX 4x4/NX 12x8The two 1U-high rackmount processors are programmed using Symetrix’ Composer software for Windows, offering identical DSP resources provided by a next-generation SHARC dual-core processor that places the burden of large matrices in one core, while freeing the second core for general-purpose signal processing. This makes it possible to design very large and complex systems around a single Radius NX.

A configurable, four-port gigabit switch serves both the Dante and control networks. This reduces or eliminates the need for external switches and prevents 100 megabit bottlenecks. Each Radius NX model offers two 1000 Base-T Dante ports, two 1000 Base-T Ethernet ports for Symetrix Composer host control and third-party accessory control over IP, an RS232 serial port for third-party accessory control, and an ARC port that distributes power and RS485 data to one or more Symetrix ARC devices. A USB audio I/O port interfaces with soft codecs or recording and playback software on Windows, Mac, and Linux platforms. The USB adio port can be configured for up to 8x8 line I/O, 2x2 line I/O, 1x1 speakerphone, or 1x1 echo cancelling speakerphone profiles.

The main differences between Radius NX models are analogue I/O, logic output, and external control input capacity. The Radius NX 4x4 has four mic/line inputs, four line outputs, four logic outputs with four paired common ground pins, and two analogue control inputs that can be used as two potentiometer inputs or as four switch inputs. The Radius NX 12x8 offers 12 mic/line inputs, eight line outputs, eight logic outputs with four paired common ground pins, and four analogue control inputs handling up to eight switches.

Both Radius NX models feature a card slot that supports all currently available, optional Radius and Edge I/O expansion cards, including VoIP, ATI, and USB cards. Either Radius NX also can connect directly to a line-up of software-controlled, Dante-enabled, analogue I/O expanders to add larger numbers of analogue inputs and outputs.

An optional AEC coprocessor, available in single-core or dual-core versions, enables up to 16 channels of wide-band acoustic echo cancelling for the highest possible levels of clarity and intelligibility in A/V and distance learning applications. Each core corresponds to a single AEC module in Composer, providing up to eight channels with a single reference or up to four channels with independent references for each channel. Radius NX Composer AEC modules are fully virtualised-AEC can be applied to any source and routed to any destination. Ultra-fast convergence boosts performance at onset of conversations and when roving microphones are in use.

Radius NX supports a virtualised and scalable AEC co-processor module, providing up to 16 full-bandwidth AEC channels. Radius NX AEC Coprocessors enable the highest possible levels of clarity and intelligibility in A/V conferencing and distance earning applications. Performance and resource utilization are optimised by matching the number of channels, number of references, and tail length to system requirements.

‘The Radius NX series represents a major leap forward in advanced audio signal processing,’ says Symetrix Senior Product Manager, Trent Wagner. ‘Either model will be an outstanding core component of network A/V systems, delivering the flexibility, reliability, and superb sonic performance our customers expect from Symetrix.’

More: www.symetrix.co

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