Processing and Control for Professional AV Installations

Composer Series

Radius NX

Radius NX is the flagship of the Symetrix DSP series, with all the features needed for any application. While perfectly suited to conferencing with optional AEC and built in USB, its flexible card slot and expandability via Dante make it the perfect building block for any application.

Series Features

  • Two models: Radius NX 4×4 and Radius NX 12×8.
  • 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.

Radius Expansion Cards

1x I/O Expansion Card slots supports Analog In,
Analog Out, Digital In, Digital Out, AEC, USB, VoIP or
Analog Telco cards.

Two models.  Radius NX 4×4 (4 analog inputs, 4 analog outputs) and Radius NX 12×8 (12 analog inputs, 8 analog outputs). Both feature optional factory installed 64×64 redundant Dante and identical DSP resources. The two differ only in analog I/O, logic output, and external control input capacity. The reduced cost of the 4×4 makes it extremely competitive in applications where many Dante endpoints are routed to a primary DSP and fewer analog connections are required. Models without Dante provide even more accessible DSP pricing for smaller systems.

Optional user installed virtualized and scalable AEC coprocessor module.  For conferencing applications the dual-core coprocessor provides up to 16 channels of full bandwidth AEC with unparalleled clarity and intelligibility.

USB audio port.  Enables soft-codec conferencing and computer-based multitrack recording or playback.

USB host port.  Supports recording, audio media playback, and digital messaging.

128×128 Super Matrix.  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.

Configurable 4-port gigabit switch.  Services both Dante (when installed) and control networks, eliminating or reducing the need for external switches while avoiding 100 Mbit bottlenecks.

Ultra-low noise preamps.  Digitally controlled 3 dB steps facilitate precise gain setting resulting in unmatched sound quality.

Option card slot.  Accepts all user installed Radius and Edge Expansion Cards, maximizing Radius NX input/output counts or adding special purpose functionality to reduce total system cost.

Radius NX 4x4

  • Full Featured Open Architecture DSP
  • 4 mic/line inputs
  • 4 line outputs
  • Ultra-low noise Symetrix preamps with 3 dB gain steps
  • 1x I/O Expansion Card slots
  • 4×4 GPIO
  • RS232 Control Terminal Blocks
  • ARC Remote Port
  • Optional 64×64 Redundant Dante
  • Optional 8 or 16 channel AEC coprocessor module
  • USB Audio port enables computer-based soft-codec conferencing
    or 8 channels of multitrack recording and playback
  • USB host port supports 8 channels of audio recording and playback
  • Dedicated routing and processing resources
    for a 128×128 Super Matrix
  • Dual Dante and dual Ethernet ports
  • Front panel LCD displays configuration, system status
    and audio levels
  • Internal Power Supply
ModelPart Number
Radius NX 4x4 Dante + USB-B80-0144
Radius NX 4x4 + USB-B80-0205

Radius NX 12x8

  • Full Featured Open Architecture DSP
  • 12 mic/line inputs
  • 8 line outputs
  • Ultra-low noise Symetrix preamps with 3 dB gain steps
  • 1x I/O Expansion Card slots
  • 8×8 GPIO
  • RS232 Control Terminal Blocks
  • ARC Remote Port
  • Optional 64×64 Redundant Dante
  • Optional 8 or 16 channel AEC coprocessor module
  • USB Audio port enables computer-based soft-codec conferencing or 8 channels of multitrack recording and playback
  • USB host port supports 8 channels of audio recording and playback
  • Dedicated routing and processing resources for a 128×128 Super Matrix
  • Dual Dante and dual Ethernet ports
  • Front panel LCD displays configuration, system status and
    audio levels
  • Internal Power Supply
ModelPart Number
Radius NX 12x8 Dante + USB-B80-0134
Radius NX 12x8 + USB-B80-0206

System Specifications

SpecificationDetail
Processor1 x Analog Devices Griffin ADSP-SC587 dualcore DSP @ 500 MHz
Raw Processing Capacity500 MIPS, 6 GFLOPS, 2 GMACS
Sampling Rate48 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 Memory174 mono seconds
Analog Control Inputs0-3.3 VDC
Recommended External Control Potentiometer10k Ohm, linear
Logic OutputsLow (0 V) when active, pulled high (5 V) when inactive
Logic Output Maximum External Power Supply / Current Sinking24 VDC / 50 mA
Logic Output Maximum Output Current10 mA
RS-232 Accessory Serial I/O57.6 kbaud (default), 8 data bits, 1 stop bit, no parity, no flow control wired straightthrough, only pins 2, 3, and 5 required
RS-485 Serial I/O38.4 kbaud (default) 8 data bits, 1 stop bit, no parity, no flow control. May be broken out of ARC port
Ethernet CableStandard CAT5/6, maximum device to device length = 328 ft / 100 m
Dante CableStandard CAT5/6, maximum device to device length = 328 ft / 100 m
ARC CableStandard CAT5/6, distance dependent upon load and number of devices
Maximum Stored Presets1,000

Analog Inputs and Outputs

SpecificationDetail
Number of Analog InputsFour (4) switchable balanced mic or line level
Analog Input Connectors3.81 mm terminal blocks
Nominal Analog Input Level+4 dBu
Analog Input Maximum Level+24 dBu
Analog Mic Pre-amp Gain0 to 51 dB in 3 dB steps with ± 24 dB digital trim
Analog Mic Pre-amp EIN< -125 dB with 150 Ohm source impedance, 22.4 kHz BW
Analog Input Impedance2k Ohms balanced, 1k Ohms unbalanced
Analog Phantom Power (per input)+48 VDC @ 10 mA maximum
Analog Input Dynamic Range>115 dB, A-weighted
Analog Input THD + Noise< -100 dB (22.4 kHz BW, unweighted); 1 kHz @ +15 dBu with 0 dB gain
Analog Input Latency0.31 mS
Number of Analog OutputsFour (4) balanced line level
Analog Output Connectors3.81 mm terminal blocks
Nominal Analog Output Level+4 dBu with 20 dB of headroom
Analog Output Level Maximum+24 dBu (+22.8 dBu into a 2k Ohm minimum load)
Analog Output Impedance300 Ohms balanced, 150 Ohms unbalanced
Analog Output Dynamic Range117 dB, A-weighted
Analog Output THD + Noise< -97 dB (22.4 kHz BW, unweighted); 1 kHz, 0 dB gain +8 dBu output
Analog Output Latency0.65 mS

USB Audio Inputs and Outputs

SpecificationDetail
USB Audio ConnectorOne (1) high-retention Type B
USB Audio Interface2.0 with Audio class 1.0 legacy modes
USB Audio Capacity1×1 (echo cancelling speakerphone and non-echo cancelling speakerphone modes) – driverless, 2×2 line I/O mode – driverless, and 8×8 line I/O mode – driver included
USB Audio Sample Rate48 kHz
USB Audio Bit Depth16-bit, speakerphone modes; 16 or 24-bit, line modes

Mechanical Specifications

SpecificationDetail
Space Required1U (WDH: 18.91 in. x 9.5 in. x 1.72 in. / 48.02 cm x 24.13 cm x 4.37 cm). Depth does not include connector allowance. Allow at least 3 inches additional clearance for rear panel connections. Additional depth may be required depending upon your specific wiring and connections.
Electrical100-240 VAC, 50/60 Hz, 60 Watts maximum, universal input
VentilationMaximum recommended ambient operating temperature is 30 C / 86 F. Ensure that the left and right equipment sides are unobstructed (5.08 cm, 2 in. minimum clearance). The ventilation should not be impeded by covering the ventilation openings with items such as newspapers, tablecloths, curtains, etc.
Shipping Weight13 lbs (5.9 kg)
Certifications and ComplianceSafety: UL 62368-1, cUL 62368-1, IEC 62368-1; EMC: EN 55103-1, EN 55103-2, EN55032, EN 61000-3-2, EN 61000-3-3, ICES-003, FCC Part 15 (all Class A); UKCA; EAC; Environmental: RoHS

Radius NX

  • Is Radius NX Microsoft Teams Certified?

    Symetrix is a Microsoft Partner*. Symetrix products are Microsoft Teams compatible**.

    * Microsoft Partner website

    ** Microsoft Teams Compatible: Provides the same functionality as certified products.