Symetrix Radius NX 4x4 USB-B - 4-Input 4-Output Audio Networking DSP Processor
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Description
Radius NX 4×4 (4 analog inputs, 4 analog outputs) and Radius NX 12×8 (12 analog inputs, 8 analog outputs) 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.
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.
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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Product Specs
| 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 | |
| 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 | |
| Note: | Optional coprocessor module required, single-core or dual-core models are available. |
| 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 |
| Mechanical | |
| 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 |
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