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Symetrix Radius NX 12x8 Digital Signal Processor

Original price $4,128.00 - Original price $4,128.00
Original price
$4,128.00 - $4,128.00
Current price $4,128.00
Inventory Status:

❓ Out of stock
About Inventory Status

Call or text us at 301-946-8808.

In stock: It is in stock and available to ship or pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.

📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.

Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.

Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.

█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions

Call or text us at 301-946-8808.

New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.

Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.

Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.

Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.

B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

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

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

We are Chuck Levin's Washington Music Center

Maryland, Virginia, and Washington DC's legendary music shop. Family-owned and operated since 1958. Buy gear the way it was meant to be bought, from a store that's been there through it all and has the vibe to prove it. We're staffed with musicians and industry experts, people that live and breathe music gear. Our mission is to help you find the right gear for your project, that thing that will bring you the most joy out of what you do. We're an authorized dealer for almost every brand, we stock items the other stores don't, so you can try before you buy. Stop by our Wheaton, MD showroom and see for yourself.

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