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Everything In Music Since 1958
Everything In Music Since 1958

Cutting Edge Software and Hardware - The Symetrix Radius NX 12x8 Digital Signal Processor with Dante

The Radius NX 12x8 features optional factory installed 64×64 redundant Dante and identical DSP resources. Containing 12 mic/line inputs and 8 outputs, the Radius NX 12x8 supports an optional 128 (64x64) channels of redundant Dante network audio.

A Next-generation SHARC Dual-core Processor enables a Composer Super Matrix - placing the burden of large matrices in one core while freeing the second core for general purpose signal processing - making it possible to design very large and complex systems around a single Radius NX. View modes make navigating through large matrices a breeze.

A Configurable 4-port Gigabit Switch serves both Dante and control networks. It eliminates or reduces the need for external switches and prevents 100 Mbit bottlenecks. Ultra-low Noise Preamps with digitally controlled 3dB gain steps contribute to the unmatched sonic superiority Symetrix has always been known for. An optional card slot, supporting all currently available Radius and Edge Expansion Cards, adds special-purpose functionality and maximizes input or output counts to reduce total system cost. When large numbers of analog inputs and outputs are required, Radius NX connects directly to a complete lineup of software-controlled Dante-enabled Analog I/O Expanders when the optional Dante card is installed.

  • Optional Dante 64×64 Dante module
  • Optional AEC coprocessor module – up to 16 channels
  • USB audio port enables soft-codecs + record/playback
  • Dedicated routing resources for a 128×128 Super Matrix
  • 4-port Gigabit Switch serves Dante + control networks
  • Ultra-low noise preamps with 3 dB gain steps
  • Support for Radius and Edge Expansion Cards
  • Microsoft Teams Compatible



  • Processor: 1 x Analog Devices Griffin ADSP-SC587 dualcore DSP @ 500 MHz
  • Raw Processing Capacity: 500 MIPS, 6 GFLOPS, 2 GMACS
  • Sampling Rate: 48 kHz, ± 100 ppm
  • Frequency Response: (A/D/A) 20 Hz – 20 kHz, ± 0.5 dB
  • Dynamic range (A/D/A): > 114 dB, A-weighted
  • THD + Noise: < -95 dB (22.4 kHz BW, unweighted); 1 kHz @ +15 dBu with 0 dB gain
  • Channel Separation (A/D/A): > 110 dB @ 1 kHz, +24 dBu
  • Latency (A/D/A): 1.04 ms, inputs routed to outputs
  • Delay Memory: 174 mono seconds
  • Analog Control Inputs: 0-3.3 VDC
  • Recommended External Control Potentiometer: 10k Ohm, linear
  • Logic Outputs: Low (0V) when Active, pulled high (5V) when inactive
  • Logic Output Maximum External Power Supply Voltage/Current Sinking: 24 VDC / 50 mA
  • Logic Output Maximum Output Current: 10 mA
  • RS-232 Accessory Serial I/O: 57.6 kbaud (default), 8 data bits, 1 stop bit, no parity, no flow control wired straight through, only pins 2, 3, and 5 required
  • RS-485 Serial I/O: 38.4 kbaud (default) 8 data bits, 1 stop bit, no parity, no flow control. May be broken out of ARC port
  • Ethernet Cable Standard: CAT5/6, maximum device to device length = 328 feet / 100 meters
  • Dante Cable: Standard CAT6, maximum device to device length = 328 feet / 100 meters
  • ARC Cable: Standard CAT5/6, distance dependent upon load and number of devices
  • Maximum Stored Presets: 1000

Analog Inputs

  • Number of Inputs: Twelve (12) switchable balanced mic or line level
  • Connectors: 3.81 mm terminal blocks
  • Nominal Input Level: +4 dBu
  • Maximum Input Level: +24 dBu
  • Mic Pre-Amp Gain: 0 to 51 dB in 3 dB steps with ± 24 dB digital trim
  • Mic Pre-Amp EIN: < -125 dB with 150 Ohm source impedance, 22.4 kHz BW
  • Input Impedance: 2k Ohms balanced, 1k Ohms unbalanced
  • Phantom Power (per input): +48 VDC @ 10 mA maximum
  • Dynamic Range: > 115 dB, A-weighted
  • THD + Noise: < -100 dB (22.4 kHz BW, unweighted); 1 kHz @ +15 dBu with 0 dB gain
  • Latency: 0.31 mS

Analog Outputs

  • Number of Outputs: Eight (8) balanced line level
  • Connectors: 3.81 mm terminal blocks
  • Nominal Output Level: +4 dBu with 20 dB of headroom
  • Maximum Output Level: +24 dBu (+22.8 dBu into a 2k Ohm minimum load)
  • Output Impedance: 300 Ohms balanced, 150 Ohms unbalanced
  • Dynamic Range: > 117 dB, A-weighted
  • THD + Noise: < -97 dB (22.4 kHz BW, unweighted); 1 kHz, 0 dB gain +8 dBu output
  • Latency: 0.65 mS

USB Audio I/O

  • Connector: One (1) high-retention Type B
  • Interface: 2.0 with Audio class 1.0 legacy modes
  • Capacity: 1x1 (echo cancelling speakerphone and non-echo cancelling speakerphone modes) - driverless, 2x2 line I/O mode - driverless, and8x8 line I/O mode - driver included
  • Sample Rate: 48 kHz
  • Bit Depth: 16-bit, speakerphone modes; 16 or 24-bit, line modes

AEC (if installed)

  • Number of Channels: Up to sixteen (16) for dual-core module (up to 8 references), up to eight (8) for single-core module (up to 4 references)
  • Tail Length: 400ms maximum, dependent on channel and reference count
  • Convergence Rate: Typically > 90 dB/sec
  • Latency: 16 mS
  • Processors: 1 x Analog Devices Griffin ADSP-21584 dualcore DSP @ 500 MHz
  • Raw Processing Capacity: 500 MIPS, 6 GFLOPS, 2 GMACS

Manufacturer: Symetrix
SKU: I553346-N-0-WHXE

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