S0 Radio Broadcast Mixer

S0 Radio Broadcast Mixer

S0 Radio Broadcast Mixer

A simple radio mixer for novice and professional users

The S0 is a high quality yet simple to operate radio broadcast mixer ideally suited to community radio stations, for educational purposes and for internet radio. Easy to understand, the S0 includes a telephone hybrid for making and recording telephone calls and a 3.5mm stereo jack for plugging in an mp3 player. The addition of a USB port allows for recording to a PC and for playing a PC automation system directly through the mixer. The headphone outputs have a built in limiter to offer hearing protection and the studio speakers mute when a microphone fader is open, with automatic mic live sign switching.

  • User friendly broadcast mixer.
  • Clear, simple layout with no jargon.
  • Designed for school & community radio.
  • Nine multi-function channel mixer.
  • Built in telephone interface.
  • Built in headphone volume limiter.
  • Large, simple LED volume display.
  • Remote output for fader starts.
  • Speaker muting when ‘Mics’ are on.
  • External mic-light switching output.
  • ‘Programme’ and ‘record’ outputs.
  • ‘Aux’ input for iPod or MP3 players.
  • Four microphone/line channels.
  • Four stereo line channels.
  • Switchable telephone/AUX channel.
  • Stereo USB audio to and from a PC.
  • Guest headphone ‘talkback’.
  • Reliable, low cost mixing solution.
  • Rack or flush mountable.
  • Integrated AC power supply.

Mic Inputs Audio Specification

Input Impedance: > 1k5Ω electronically balanced
Input Gain Range: Preset pot +24dB to +67dB ref -50dBu, TRIM pot ± 15dB
Frequency Response: 40Hz to 20kHz –1dB, +0dB
Mic input E.I.N.: -130dB with 150Ω source
Phantom Power: +48V to each mic input (SCi selectable)
Common Mode Rejection Ratio: > 60dB typically
Pan Range: Off/-3dB Centre/Off

Stereo Line Inputs Audio Specification

Input Impedance: > 20kΩ electronically unbalanced
Input Gain Range: +10dB ref 0dBu at PGM output, TRIM pot ± 15dB
Frequency Response: 20Hz to 20kHz –0.5dB, +0dB
Noise (20Hz-20kHz): -92dBu ref 0dB (fader down, no routing)
Total Harmonic Distortion: 0.015% at 1kHz, 0.015% at 10kHz ref +8dBu
Balance Range: ± 6dB

Outputs Audio Specification

Output Impedance: PGM output: < 50Ω electronically balanced
REC output: < 75Ω unbalanced Monitor output: < 75Ω unbalanced
Headphone output load: > 16Ω, recommended 250Ω
Maximum Output: PGM output: +26dBu balancedREC output: Level:+16dBu unbalanced

Input & Output Connections

Audio Inputs: 4 x Microphone XLR-3 pin sockets
12 x Pair stereo line RCA phono sockets
1 x Pair stereo aux RCA phono sockets
1 x Stereo aux 3.5mm jack socket
Audio Outputs:
PGM: 2 x XLR-3 pin plug (balanced)
REC: 1 x Stereo pair RCA phono sockets
Monitor Inputs: 1 x Stereo pair RCA phono sockets
Monitor Outputs: 5 x 6.35mm (1/4”) stereo jack sockets
(2 x presenter, 2 x guest, 1 x loudspeaker)
Remote Outputs: 9 x 6.35mm (1/4”) stereo jack sockets (one per channel)
1 x 6.35mm (1/4”) stereo jack socket for light control
Telephone: 2 x RJ11 6/4 (1 x line, 1 x handset)
USB Audio: 1 x Type-B receptacle
USB Serial: 1 x Type-B receptacle
Mains Input: Filtered IEC, continuously rated 85-264VAC, 47-63Hz, 45w nominal, 50w peak
Fuse Rating: Anti-surge fuse 2A 20 x 5mm

Equipment Type

S0: S0 radio broadcast mixer

Physical Specification

Dimensions (Raw): 48.3cm (W) x 35.6cm (D) x 12.5cm (H)
19″ (W) x 14″ (D) x 4.9″ (H)
Dimensions (Boxed): 67cm (W) x 44cm (D) x 25cm (H)
26.4″ (W) x 17.3″ (D) x 9.84″ (H)
Cut-Out Dimensions: 44cm (W) x 34.7cm (D)
17.32″ (W) x 13.66″ (D)
Weight: Nett: 8.5kg  Gross: 10.12kg
Nett: 18.7lb Gross: 22.26lb

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