Product Description

Radius is an all-in-one console system designed for small standalone or networked studios, where no more than eight faders are needed. Like all Axia® consoles, it’s easy to deploy: each Radius control surface is powered by a burly QOR.16 integrated console engine with DSP-powered mixing engine, analog and digital audio I/O, custom Ethernet switch and GPIO ports. The Radius surface connects to the QOR.16 engine with a single CANBus cable.

Radius includes 4 stereo Program buses — 3 dedicated Program, Audition and Utility mixing outputs; the fourth a stereo Utility bus for recording phone callers or other off-air bits. The fourth bus may also be used as an additional Program bus. Automatic mix-minus is provided on each fader, plus talkback functions, one-button off-air Record Mode, Show Profile instant recall of up to 4 pre-defined console “snapshots”, LED bar-graph program meters switchable between VU and PPM meter styles, high- resolution OLED option displays on each fader, and Studio and Control Room monitor controls. Radius can be placed on top of desk surfaces, mounted drop-in style, or rack-mounted using included hardware.

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Additional Information

QOR.16 Connections

Microphone Inputs: 2x balanced XLR-F, with selectable Phantom power

Analog Inputs: 8x RJ-45, StudioHub+ standard.

Analog Outputs: 4x RJ-45, StudioHub+ standard.

AES/EBU Inputs: 1x RJ-45, StudioHub+ standard.

AES/EBU Outputs: 1x RJ-45, StudioHub+ standard.

GPIO: 4x DB-15

4x 100BASE-T with PoE, RJ-45

2x 100BASE-T, RJ-45

2x 1000BASE-T, RJ-45

2x Gigabit, SFP (Small Form Pluggable)

Console Frame Connections: 1x, 6-pin “latch and lock” style

Accessory Connections: 1x, 6-pin “latch and lock” style

Microphone Preamplifiers

Source Impedance: 150 Ohms

Input Impedance: 4 k Ohms minimum, balanced

Nominal Level Range: Adjustable, -75 dBu to -20 dBu

Input Headroom: >20 dB above nominal input

Output Level: +4 dBu, nominal

Analog Line Inputs

Input Impedance: 20 k Ohms

Nominal Level Range: Selectable, +4 dBu or -10dBv

Input Headroom: 20 dB above nominal input

Analog Line Outputs

Output Source Impedance: <50 Ohms balanced

Output Load Impedance: 600 Ohms, minimum

Nominal Output Level: +4 dBu

Maximum Output Level: +24 dBu

Digital Audio Inputs And Outputs

Reference Level: +4 dBu (-20 dB FSD)

Impedance: 110 Ohm, balanced (XLR)

Signal Format: AES-3 (AES/EBU)

AES-3 Input Compliance: 24-bit with selectable sample rate conversion, 20 kHz to 216kHz input sample rate capable.

AES-3 Output Compliance: 24-bit

Digital Reference: Internal (network timebase) or external reference 48 kHz, +/- 2 ppm

Internal Sampling Rate: 48 kHz

Output Sample Rate: 48 kHz

A/D Conversions: 24-bit, Delta-Sigma, 256x oversampling

D/A Conversions: 24-bit, Delta-Sigma, 256x oversampling

Latency <3 ms, mic in to monitor out, including network and processor loop

Frequency Response

Any input to any output: +0.5 / -0.5 dB, 20 Hz to 20 kHz

Dynamic Range

Analog Input to Analog Output: 102 dB referenced to 0 dBFS, 105 dB “A” weighted to 0 dBFS

Analog Input to Digital Output: 105 dB referenced to 0 dBFS

Digital Input to Analog Output: 103 dB referenced to 0 dBFS, 106 dB “A” weighted

Digital Input to Digital Output: 125 dB

Equivalent Input Noise

Microphone Preamp: -128 dBu, 150 Ohm source, reference -50 dBu input level

Total Harmonic Distortion + Noise

Mic Pre Input to Analog Line Output: <0.005%, 1 kHz, -38 dBu input, +18 dBu output

Analog Input to Analog Output: <0.008%, 1 kHz, +18 dBu input, +18 dBu output

Digital Input to Digital Output: <0.0003%, 1 kHz, -20 dBFS

Digital Input to Analog Output: <0.005%, 1 kHz, -6 dBFS input, +18 dBu output

Crosstalk Isolation, Stereo Separation And CMRR

Analog Line channel to channel isolation: 90 dB isolation minimum, 20 Hz to 20 kH

Microphone channel to channel isolation: 80 dB isolation minimum, 20 Hz to 20 kHz

Analog Line Stereo separation: 85 dB isolation minimum, 20Hz to 20 kHz

Analog Line Input CMRR: >50 dB, 20 Hz to 20 kHz

Microphone Input CMRR: >50 dB, 20 Hz to 20 kHz

Audio Processing

Mic Equalizer (applicable to up to 6 faders)

Frequency Bands: 20Hz to 320Hz, 125Hz to 2KHz, 1.25KHz to 20KHz.

Cut/Boost range on each band: -25dB to +15dB.

Q-factor: Automatic – bandwidth varies based on amount of cut or boost.

Power Supply AC Input, QOR.16 with Radius Console

Auto-sensing supply, 90VAC to 240VAC, 50 Hz to 60 Hz, IEC receptacle, internal fuse

Power consumption: 100 Watts

Operating Temperatures

-10 degrees C to +40 degrees C, <90% humidity, no condensation


20.5” x 19” x 4.5” (desktop to meter bridge)


Europe: Complies with the European Union Directive 2002/95/EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS), as amended by Commission Decisions 2005/618/EC, 2005/717/ EC, 2005/747/EC (RoHS Directive), and WEEE.

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