Radius NX
- 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.
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.
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General Specifications
| Processor | 1 x Analog Devices Griffin ADSP-SC587 dual- core 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. |
| 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. |
| THD + Noise | < -95 dB (22.4 kHz BW, unweighted); 1 kHz @ +15 dBu with 0 dB gain |
| 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 |
| Models | Radius NX 4x4 USB-B, Radius NX 4x4 Dante + USB-B |
Analog Inputs
| Connectors | 3.81 mm terminal blocks. |
| Number of inputs | Four (4) switchable balanced mic or line level |
| 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 |
| CMRR | > 50 dB @ 1 kHz, unity gain |
| 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
| Connectors | 3.81 mm terminal blocks. |
| Number of outputs | Four (4) balanced line level |
| 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, and 8x8 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 | Dual-core module: For standard conferencing, up to sixteen (16) channels with two (2) references. For mix-minus applications, up to eight (8) channels with eight (8) references. Single-core module: For standard conferencing, up to eight (8) channels with one (1) reference. For mix-minus applications, up to four (4) channels with four (4) references. |
| Tail Length | 400 mS maximum, dependent on channel and reference count |
| Convergence Rate | Typically > 90dB/sec |
| Latency | 11 mS |
| Processors | 1 x Analog Devices Griffin ADSP-21584 dual-core DSP @ 500 MHz |
| Raw processing capacity | 500 MIPS, 6 GFLOPS, 2 GMACS |
| *Optional coprocessor module required, single-core or dual-core models are available. |
Mechanical Data
| Space Required | 1U (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. |
| Electrical | 100-240 VAC, 50/60 Hz, 60 Watts maximum, universal input. |
| Ventilation | Maximum 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 Weight | 8.5 lbs. (3.85 kg) |
| Certifications or Compliance | e Safety: UL 60065, cUL 60065, IEC 60065 EMC: EN 55103-1, EN 55103-2, EN55032, EN 61000-3-2, EN 61000-3-3, ICES-003, FCC Part 15 (all Class A) Environmental: RoHS |
Architect & Engineer Specifications : Symetrix Radius NX 4×4
The device shall provide four analog mic/line inputs that are adjustable from line to mic level with coarse gain, fine trim, phantom power, invert and mute, and four analog line outputs that are adjustable with fine gain and mute. All signal processing, mixing and routing functions (including I/O levels) shall be controllable via software. Audio inputs and outputs shall be accessed via rear panel 3.81 mm terminal block connectors.
An expansion card slot may accommodate either a 2 line VoIP interface card, 2 line analog telephone interface card, 8×8 USB audio I/O card, 4 channel digital input card, 4 channel digital output card, 4 channel mic/line input card, 4 channel AEC input card, 4 channel analog output card, or remain empty.
An optional internal DSP coprocessor module may be user installed for additional application-specific processing such as acoustic echo cancellation (AEC).
A USB 2.0 audio I/O port with class 1.0 legacy modes on a high-retention Type B connection is configurable for up to 8×8 line I/O as well as 2×2 line I/O, 1×1 speakerphone, or 1×1 echo- cancelling speakerphone profiles.
Network audio expansion shall be provided by an optional factory installed Dante Card with a capacity of 128 (64×64) channels. Primary and Secondary Dante network audio connections shall be provided for redundant network implementation. Connectors shall be 1000 Base-T RJ45 utilizing CAT6 cable.
A designer software application shall be provided that operates on a Windows computer, with network interface installed, running Windows 7® or higher operating system. Computer connection for configuration shall be via the device’s rear panel Ethernet connector. All internal processing shall be digital (DSP). Available DSP components shall include (but not be limited to) various forms of: mixers, equalizers, filters, crossovers, dynamics/gain controls, routers, delays, remote controls, meters, generators, onboard logic, and diagnostics.
The front panel shall include a display and a momentary switch. The display shall provide communications and system status, I/O metering, and fault messages.
External control shall include dedicated software screens as well as preset selection, I/O level control and muting using the optional ARC wall panel remote controls via industry-standard CAT5 cable with RJ45 connectors. A built-in web server shall provide four instances of ARC-WEB, which allows for user control from nearly any web browser or mobile device. Logic I/O shall consist of four contact closures or two potentiometer inputs along with four logic outputs. The logic outputs may be used to drive LEDs directly or control external relays or switchers. All program memory shall be non-volatile and provide program security should power fail. The device shall provide an on board real time clock to facilitate automatic, timed changing of presets and may sync to NTP. Third-party control systems may interface over IP and RS-232 using a published ASCII control protocol.
Audio conversion shall be 24-bit, 48 kHz and internal processing shall be 32-bit or 40-bit floating point, 48 kHz. The dynamic range shall not be lower than 115 dB, A-weighted with a maximum input level of +24 dBu and maximum output level of +24 dBu.
The device shall have an IEC power input socket for 120-240 VAC. The device shall meet UL/ CSA and CE safety requirements and comply with CE and FCC Part 15 emissions limits. The device shall be RoHS compliant. The chassis shall be constructed of Galvalume and molded plastic, and mount into a standard 19” 1U EIA rack using detachable rack ears. The device shall be a Symetrix Radius NX 4×4.
General Specifications
| Processor | 1 x Analog Devices Griffin ADSP-SC587 dual- core 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. |
| 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. |
| THD + Noise | < -95 dB (22.4 kHz BW, unweighted); 1 kHz @ +15 dBu with 0 dB gain |
| 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 |
| Models | Radius NX 12x8 USB-B, Radius NX 12x8 Dante + USB-B |
Analog Inputs
| Connectors | 3.81 mm terminal blocks. |
| Number of inputs | Twelve (12) switchable balanced mic or line level |
| 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 |
| CMRR | > 50 dB @ 1 kHz, unity gain |
| 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
| Connectors | 3.81 mm terminal blocks. |
| Number of outputs | Eight (8) balanced line level. |
| Nominal output level | +4 dBu with 20 dB of headroom. |
| Maximum output level | +24 dBu (+22.8 dBu into a 2 k 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, and 8x8 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 | Dual-core module: For standard conferencing, up to sixteen (16) channels with two (2) references. For mix-minus applications, up to eight (8) channels with eight (8) references. Single-core module: For standard conferencing, up to eight (8) channels with one (1) reference. For mix-minus applications, up to four (4) channels with four (4) references. |
| Tail Length | 400 mS maximum, dependent on channel and reference count |
| Convergence Rate | Typically > 90dB/sec |
| Latency | 11 mS |
| Processors | 1 x Analog Devices Griffin ADSP-21584 dual-core DSP @ 500 MHz |
| Raw processing capacity | 500 MIPS, 6 GFLOPS, 2 GMACS |
| *Optional coprocessor module required, single-core or dual-core models are available. |
Mechanical Data
| Space Required | 1U (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. |
| Electrical | 100-240 VAC, 50/60 Hz, 60 Watts maximum, universal input. |
| Ventilation | Maximum 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 Weight | 8.5 lbs. (3.85 kg) |
| Certifications or Compliance | Safety: UL 60065, cUL 60065, IEC 60065 EMC: EN 55103-1, EN 55103-2, EN55032, EN 61000-3-2, EN 61000-3-3, ICES-003, FCC Part 15 (all Class A) Environmental: RoHS |
Architect & Engineer Specifications : Symetrix Radius NX 12×8
The device shall provide twelve analog mic/line inputs that are adjustable from line to mic level with coarse gain, fine trim, phantom power, invert and mute, and 8 analog line outputs that are adjustable with fine gain and mute. All signal processing, mixing and routing functions (including I/O levels) shall be controllable via software. Audio inputs and outputs shall be accessed via rear panel 3.81 mm terminal block connectors.
An option card slot may accommodate either a 2 line VoIP interface card, 2 line analog telephone interface card, 4 channel digital input card, 4 channel digital output card, 4 channel mic/line input card, 4 channel AEC input card, 4 channel analog output card, 8×8 USB audio I/O card, or remain empty.
An optional internal DSP coprocessor module may be user installed for additional application-specific processing such as acoustic echo cancellation (AEC).
A USB 2.0 audio I/O port with class 1.0 legacy modes on a high-retention Type B connection is configurable for up to 8×8 line I/O as well as 2×2 line I/O, 1×1 speakerphone, or 1×1 echo- cancelling speakerphone profiles.
Network audio expansion shall be provided by an optional factory installed Dante Card with a capacity of 128 (64×64) channels. Primary and Secondary Dante network audio connections shall be provided for redundant network implementation. Connectors shall be 1000 Base-T RJ45 utilizing CAT6 cable.
A designer software application shall be provided that operates on a Windows computer, with network interface installed, running Windows 7® or higher operating system. Computer connection for configuration shall be via the device’s rear panel Ethernet connector. All internal processing shall be digital (DSP). Available DSP components shall include (but not be limited to) various forms of: mixers, equalizers, filters, crossovers, dynamics/gain controls, routers, delays, remote controls, meters, generators, onboard logic, and diagnostics.
The front panel shall include a display and a momentary switch. The display shall provide communications and system status, I/O metering, and fault messages.
External control shall include dedicated software screens as well as preset selection, I/O level control and muting using the optional ARC wall panel remote controls via industry-standard CAT5 cable with RJ45 connectors. A built-in web server shall provide four instances of ARC-WEB, which allows for user control from nearly any web browser or mobile device. Logic I/O shall consist of eight contact closures or four potentiometer inputs along with eight logic outputs. The logic outputs may be used to drive LEDs directly or control external relays or switchers. All program memory shall be non-volatile and provide program security should power fail. The device shall provide an on board real time clock to facilitate automatic, timed changing of presets and may sync to NTP. Third-party control systems may interface over IP and RS-232 using a published ASCII control protocol.
Audio conversion shall be 24-bit, 48 kHz and internal processing shall be 32-bit or 40-bit floating point, 48 kHz. The dynamic range shall not be lower than 115 dB, A-weighted with a maximum input level of +24 dBu and maximum output level of +24 dBu.
The device shall have an IEC power input socket for 120-240 VAC. The device shall meet UL/ CSA and CE safety requirements and comply with CE and FCC Part 15 emissions limits. The device shall be RoHS compliant. The chassis shall be constructed of Galvalume and molded plastic, and mount into a standard 19” 1U EIA rack using detachable rack ears. The device shall be a Symetrix Radius NX 12×8.
Early to the Party. In 2007 Symetrix recognized the need for a standardized, high performance digital audio networking protocol – not only for our own products but for the pro audio industry at large. After considerable research, we aligned with Audinate to become one of the earliest licensees of the Dante protocol. The choice has proven prescient. Legacy protocols like Cobranet have faded into obscurity. Newer protocols, AVB for example, have failed to gain traction due to inherent technical drawbacks. With hundreds of third party licensees and a list of commercially available products that is growing exponentially, Audinate’s Dante protocol is now an established standard – far and above any competition.
Since the introduction of our first Dante enabled product in 2012, we’ve leveraged the benefits of the protocol for our own box-to-box audio networking, as well as for peer-to-peer connection with major third parties including Yamaha, Shure, and AudioTechnica. In countless case studies, designers have used off-the-shelf switches and cabling to link Symetrix DSPs to Dante-enabled mixing consoles, microphones, power amplifiers, loudspeakers, and laptop computers.
Dante is in our DNA … and that has placed us in a highly advantageous position. While our competitors choose to design for and support multiple network audio protocols, in some cases proprietary, Symetrix designs for and supports only one ubiquitous and clearly accepted industry standard: Audinate’s Dante.
Economical and Versatile. Dante does away with heavy, expensive analog cabling, replacing it with low-cost, readily available CAT5e, CAT6, or fiber optic cables. Using Dante’s logical routes instead of physical point-to-point connections, a network can be expanded and reconfigured at any time.
Symetrix Dante systems scale from a simple pairing of a DSP and an analog I/O expander, to multi-DSP distributed networks. System designers use Symetrix Composer software to easily connect Symetrix DSPs and analog I/O expanders to third-party Dante equipped mixing consoles, microphones, power amplifiers, loudspeakers, and computers.
Outstanding Audio Performance. Using the Dante protocol, Symetrix transmits and receives uncompressed full bandwidth audio with up to 32 bits of resolution at a 48kHz sample rate. Audio is transmitted and received digitally eliminating the analog challenges of interference from other electrical equipment, crosstalk between cables, or signal degradation over long cable runs.
Glitch-Free Redundancy. Symetrix Radius, Radius NX, Edge, xIn 12, and xOut 12 Dante-enabled products support glitch–free redundancy, enabling a secondary physical network to duplicate the audio traffic on the primary network, automatically preventing audio loss or interruption in the event of a primary network connectivity problem.
Unicast or Multicast. Dante channels can be configured as either unicast or multicast making the best use of available bandwidth. Unicast provides direct point-to-point connections; multicast streams audio to multiple destinations simultaneously.
Ease of Programming. Composer is used to program Symetrix Dante equipped DSPs and analog I/O expanders. In addition to the programming of Symetrix devices, Composer also natively configures the setup and routing of select third-party Dante endpoints. Integrators can design a complete end-to-end DSP signal path using just one application.
The Symetrix Dante Advantage. We provide our customers with a network audio solution that is flexible, dependable, scalable, and supportable. In short, just what you’d expect from an industry standard … and just what you’d expect from Symetrix.
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Control Server
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xControl External Control Expander
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Radius and Edge Expansion Cards
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Radius and Edge Expansion Cards
Expand I/O Capacity and Add Functionality Analog Audio : 4 Channel Input…
