S21 Digital
Mixing Console

World-class mixing at an astonishing price

S21
  • 48 Flexi Input Channels
  • 16 Flexi Aux / Sub-Group Busses
  • LR Master Buss
  • 10 x 8 Full Processing Matrix
  • 4 Dynamic Equalizers (to follow Yukio)
  • 96kHz Sample Rate

S21 : Overview

DiGiCo’s world-renowned innovation, deep feature-set and flagship audio quality of our high-end digital consoles is within reach of everyone. How? Meet the S21 – a world-class DiGiCo mixing console at an astonishing price.

Step up to the S21’s worksurface, complete with dual P-CAP multi-touch screens, 48 flexi-channels, the equivalent of 46 buses and benchmark 96kHz performance, and this console’s heritage is clear – the S21 is every inch a DiGiCo desk. It’s also a revelation in terms of what an introductory digital console can deliver.

Based on the same pioneering design approach as the industry-leading SD series, the S21 boasts the same proprietary audio algorithms plus a new ARM QuadCore RISC processor which runs in harmony with the FPGA core. The result is faster processing with lower power consumption, all packaged in the workflow that the industry’s most respected engineers rely upon – now available to everyone.

Under the Hood

Familiar to the touch and built for the road, the S21 offers mixing without limits. The integration of a high power QuadCore SoC with high bandwidth memory, a low power 484-ball array FPGA and a fourth-generation control SHARC DSP offers unprecedented power today as well as the potential for a future processing upgrade path. The compact footprint of the S21 has no relationship to the scale of processing power going on under the polycarbonate worksurface.

The two touchscreens each provide 10 channel strips, giving not only clear visual feedback and control of 20 simultaneous channels for a single user, but also the possibility when mixing large shows for more than one operator to take advantage of the newly designed drag, swipe and drop feature that simplifies custom fader layouts.

Visual feedback is further reinforced by the HTL (Hidden Till Lit) functionality of the encoder rings, while parameters currently not in use are automatically greyed out, always drawing your attention to the right controls.

The dual screen concept aims to aid the new user learning curve and remove distractions by not only giving you more channels to view at any one time, but also allowing one screen to be used as a setup or master whilst the other is utilised for operation. Both touchscreens are responsive to EQ shaping, with fine-tuning available via the tactile and intuitive rotary encoders.

Altering the Channel Bank layout, and mixing and matching any channel, aux, group, control group, or matrix within a bank, is easily accomplished by drag and drop at the touch of a screen.

I/O

The S21’s local I/O section includes 24 mic/line inputs, 12 line outs, two mono AES/EBU, and two DMI (DiGiCo Multichannel Interface) card slots which interface to standard industry formats such as Analogue, MADI, Dante, Waves SoundGrid, or Calrec’s Hydra 2 Network.

The console connects seamlessly with the DiGiCo remote I/O D-Rack providing an additional 32 inputs and up to 16 outputs.

Get instant access to 32 fully integrated low-latency Waves stereo MultiRacks, each with up to eight plug-ins per rack, by fitting the DiGiCo SoundGrid DMI card linked to external SoundGrid or DiGiGrid servers, giving a total of 128 additional I/O.

DMI Interface Options

  • DMI-AMM

    This card offers both the SD-Range and the S-Series consoles 48 channels of automatic microphone mixing which can be used in any console input channel.
  • DMI-ADC

    This card provides 16 analogue inputs on 2 x 25 way “D” connectors. The ADC card is a line card only. There is no microphone amplifier or phantom power available. There is no gain control function for these inputs (only digital trim). Maximum input level +22dBu.
  • DMI-AES

    This card provides 16 Inputs (8 pairs) and 16 outputs (8 pairs) on 2 x 25 way “D” connectors. All AES inputs are provided with sample rate conversion (SRC) by default. All AES outputs are synchronised to the mixer system clock.
  • DMI-AVIOM

    This card provides 16 output channels at 48kHz (with SRC) and Supports Aviom's proprietary A-Net Pro16 protocol. It has 1 CAT5E connection and faceplate DIP switched for Stereo output selection.
  • DMI-DAC

    This card provides 16 analogue outputs on 2 x 25 way “D” connectors DAC card is line level only. Maximum output level +22dBu (Digital Full Scale)
  • DMI-DANTE

    This card provides 64 input and 64 output channels at 48KHz and 32 input and 32 output channels at 96KHz. It is provided with Primary and Secondary (backup) Gigabit Ethernet ports for connection to the Dante network.
  • DMI-MADI-B

    This card can be used to connect a Standard MADI stream (64 channels in and out) at 48KHz or 96KHz or an SD Series DiGiCo Rack with the appropriate connector (D-Rack, D2-Rack, SD-Rack, SD-MiNiRack)
  • DMI-MADI-C

    This card can be used to connect a Standard MADI stream (64 channels in and out) at 48KHz or 96KHz or an SD Series DiGiCo Rack with the appropriate connector (D-Rack, D2-Rack, SD-Rack, SD-MiNiRack)
  • DMI-ME

    This card offers a 40 output interface to Allen & Heath ME-1 or ME-500 Personal Mixers. Multiple personal Mixers can be connected to the DMI ME via the ME-U Hub.
  • DMI-MIC

    This card provides 8 microphone preamp inputs on a 1 x 25 way "D" connector. Each channel has individual, low noise gain control and phantom power. User interface is through a normal channel strip on your console. Maximum input level is +22dBu.
  • DMI-WAVES

    This card will provide 64 input and 64 output channels at 48kHz or 96kHz to the SoundGrid Network with 2 Cat5e/Cat6 connections.
  • DMI-A3232

    This card allows S-Series Consoles to connect to the A168 STAGE Stage Rack. Each CAT5 port supports up to 32 I/O, for a total channel count of 64 I/O.

S21 I/O Racks & Options

The following rack options are available:

  • D-Rack

  • SD-Rack

  • SD-MiNi Rack

  • SD-Nano Rack

  • A168 STAGE

  • D2-Rack

The following interfaces and accessories are available:

  • Orange Box

  • Waves SoundGrid

  • Purple Box

  • Little Red Box

  • Little Blue Box

Other related products:

  • S31

S21 High Rez Image Gallery

48
Input Channels
4
Dynamic EQ
4
DiGiTuBes
8
Digital FX

S21 Specifications

General Specifications

  • 48 x Input flex-channels Mono/Stereo (equivalent of 96 DSP channels)
  • 46 busses: 16 x flexi-busses Mono/Stereo (equivalent of 32 DSP busses), Stereo Master (2), Solo busses (2 stereo, 4 total), and 10 x 8 Matrix (8)
  • 10 x Control Groups
  • 1 x Compressor per channel and buss
  • 1 x Gate per channel and buss (switchable to ducker, or compressor with side chain access)
  • 16 x assignable 32 band Graphic EQs
  • 8 x FX engines (reverbs, delays, w/modulation and enhancer)
  • 4 x assignable DiGiTuBes
  • 4 x assignable Multiband Compressors
  • 4 x assignable Dynamic EQ’s
  • User definable Macros
  • An extremely high power headphone amplifier with 1/4 inch and mini jack socket
  • 96kHz as standard
  • 24 mic/line inputs
  • 12 analogue outs
  • 2 AES/EBU I/O (mono)
  • Word Clock I/O
  • 1 GPI and 1 GPO
  • DVI out (for an external monitor)
  • 2 DMI Card slots (up to 64 I/O per slot)
  • 2 Ethernet connections for Networking
  • 2 x 24 segment master/solo meters
  • Touch sensitive rotaries with integrated switch & HTL
  • 2 x multi-touch screens
  • 21 x touch sensitive moving faders
  • 4 x layers of banks of 10 faders
  • Customisable bank and channel layout
  • Snapshots
  • Integrated USB2 Audio I/O interface for recording and playback of up to 48 channels

Audio Specification

  • Sample Rate 48kHz, 96kHz
  • Processing Delay 2ms Typical @ 48k (48 Stereo Channels, Stage Input Through L-R Buss to Stage Output) 1.1ms @ 96kHz
  • Internal Processing Up to 40-bit, Floating Point
  • A>D & D>A 24-bit Converter Bit Depth
  • Frequency Response +/- 0.6dB (20Hz – 20kHz)
  • THD <0.05% @ Unity Gain, 10dB Input @ 1kHz
  • Channel Separation Better Than 90dB (40Hz – 15kHz)
  • Residual Output <90dBu Typical
  • Noise (20Hz – 20kHz)
  • Microphone Input Better Than -126dB Equivalent Noise
  • Maximum Output Level +22dBu
  • Maximum Input Level +22dBu

Processing Channel Specification
Input Channel

  • Input Name: User-Defined
  • Channel Selection: Mono / Stereo
  • Input Routing: Main Input
  • Analogue Gain: -20 to +60dB
  • Phase: Normal / Reverse
  • Digital Trim: 40 to +40dB
  • Delay: 0 – 682ms
  • DiGiTuBe Drive: 0.01 – 50.0
  • Bias: 0 – 6
  • LPF: 20 – 20kHz, 24dB/Oct
  • HPF: 20 – 20kHz, 24dB/Oct
  • Insert A: (Pre EQ/Dyn) On/Off
  • Equalisation 4 Band EQ: Parametric or Dynamic (Low/Lowshelf, Lower-Mid/Lowshelf, Upper-Mid/Hishelf, Hi/Hishelf)
    On/Off
    Freq; 20 – 20kHz
    Gain; +/- 18dB
    Q: 0.1 -20 (Parametric) / 0.10-0.90 (Shelf)
  • Dynamics 1: Single or 4 x Multiband (3-Band)
    Compressor; On/Off
    Threshold; -60 – 0dB
    Attack; 500us – 100ms
    Release; 5ms – 5s
    Ratio; 1:1 – 50:1
    Gain; 0 to +40dB
    Hi Crossover; 20Hz – 20kHz
    Lo Crossover; 20Hz – 20kHz
    Knee; Hard, Med, Soft
  • Dynamics 2: On/Off
    Gate / Ducker Threshold; -60 – 0dB
    Attack; 50us – 100ms
    Hold; 2ms – 2s
    Release; 5ms – 5s
    Range; 0 – 90dB
    Key; Any Source
    Key Listen
    Freq/Width; 20 – 20kHz
    Compressor; On/Off
    Threshold; -60 – 0dB
    Attack; 500us – 100ms
    Release; 5ms – 5s
    Ratio; 1:1 – 50:1
    Gain; 0 to +40dB
    Link; Any Channel / Buss
    S/C Source : Any Source
    S/C Listen : On/Off
    S/C Filter Freq/Width: 20Hz – 20kHz
  • Insert B: (Post EQ/Dyn) On/Off
  • Mute: Channel Mute
  • Solo: Solo Buss 1 / Solo Buss 2 / Both,
  • Channel Safe: Socket Properties, Input Route, Mono/Stereo, Label, Filters, Trim, Delay, Tube, Insert A, EQ, Dyn1, Dyn2, Insert B, Aux, Group Assigns, Pan, Fade, Mute, Direct Outs, Full Safe
  • Output: Routing Buss,
  • Insert A, Insert B,
  • Direct: Post-Fade
  • Fader: 100mm Motorised Fader ∞ to +10dB

Processing Channel Specification
Aux / Group / Matrix Output

  • Name: User-Defined
  • Phase: Normal / Reverse
  • Digital Trim: -40 to +40dB
  • Delay: 0 – 682ms
  • DiGiTuBe Drive: 0.01 – 50.0 Bias 0 – 6
  • LPF: 20 – 20kHz, 24dB / Oct
  • HPF: 20 – 20kHz, 24dB / Oct
  • Insert A: (Pre EQ/Dyn) On/Off
  • Equalisation 4 Band EQ: Parametric or Dynamic (Low/Lowshelf, Lower-Mid/Lowshelf, Upper-Mid/Hishelf, Hi/Hishelf)
    On/Off
    Freq; 20 – 20kHz
    Gain; +/- 18dB
    Q: 0.1 -20 (Parametric) / 0.10-0.90 (Shelf)
  • Dynamics 1: Single or 4 x Multiband (3-band)
    Compressor; On/Off
    Threshold; -60 – 0dB
    Attack; 500us – 100ms
    Release; 5ms – 5s
    Ratio; 1:1 – 50:1
    Gain; 0 to +40dB
    Hi Crossover; 20Hz – 20kHz
    Lo Crossover; 20Hz – 20kHz
    Knee; Hard, Med, Soft
  • Gate / Ducker Threshold; -60 – 0dB
    Attack; 50us – 100ms
    Hold; 2ms – 2s
    Release; 5ms – 5s
    Range; 0 – 90dB
    Key; Any Source
    Key Listen
    Freq/Width; 20 – 20kHz
    Compressor On/Off
    Threshold; -60 – 0dB
    Attack; 500us – 100ms
    Release; 5ms – 5s
    Ratio; 1:1 – 50:1
    Gain; 0 to +40dB
    Link; Any Channel/Buss
    S/C Source: Any source
    S/C Listen: On/Off
    S/C Filter Freq/Width: 20Hz – 20kHz
  • Insert B: (Post EQ/Dyn) On/Off
  • Mute: Channel Mute
  • Solo: Solo Buss 1 / Solo Buss 2 / Both,
  • Channel Safe: Mono/Stereo, Bus Mode, Label, Filters, Trim, Delay, Tube, Insert A, EQ, Dyn1, Dyn2, Insert B, Group Assigns, Fade, Mute, Direct Outs, Full Safe
  • Output Routing: Outputs, Insert A, Insert B
  • Fader: 100mm Motorised Fader ∞ to + 10dB

S21 Brochure

S21 Selected Case Studies

Case studies featuring the DiGiCo S21. View latest DiGiCo news and case studies here.

S21 Downloads

FileAction
S21 User Manual - Version EDownload 
S21 User Guide Version F - For V1.3+Download 
S21 Dimensions DrawingDownload 
S21 DXF DrawingDownload 
S21 V2.3.1 Software - Latest Release - Direct download - Replaces V2.3Download 
S21 V2.3 Software - Direct download - Replaces V2.2Download 
S21/S31 Offline Software V2.3.1 (Windows)Download 
S21/S31 Offline Software V2.3.1 (Mac)Download 
S21/S31 Offline Software V2.1 (Mac) - First ReleaseDownload 
S21/S31 Offline Software V2.1 (Windows) - First ReleaseDownload 
S21/S31 Offline Software V2.2 (Mac) - Replaces V2.1Download 
S21/S31 Offline Software V2.2 (Windows) - Replaces V2.1Download 
S21/S31 Offline Software V2.3 (Windows) - Replaces V2.2Download 
DiGiCo S Series V2.3.1 Offline Software for MAC.- Replaces V2.3)Download 

FileAction
DiGiCo S Series V2.3.1 Offline Software for WINDownload 
DiGiCo S Series V2.3.1 Offline Software for MACDownload 
Dante Firmware Update (4.0.9.1) for Dante DMI and Dante SD-Rack cards (November 2018)Download 
DiGiCo S-Series Remote Control AppDownload 
DiGiCo S Series Remote Control App User GuideDownload 

Applications

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