DiGiCo SD12
DiGiCo·Model SD12·digico-sd12
Photos
Manufacturer product photography — the drawn faceplate above stays true to panel layout; these show the hardware itself.
About the DiGiCo SD12
The DiGiCo SD12 is the working-class flagship in DiGiCo's SD line — 72 inputs, 36 outputs, dual 17" touchscreens, and the Stealth Digital Processing engine that defined DiGiCo's sound on theater and touring rigs through the 2010s. Two MADIA pro digital format carrying 64 channels on one coax or optical cable. Point-to-point — one sender, one receiver, no network required. ports (BNCThe twist-lock coax connector used for word clock and antenna runs — it locks, so it can’t be pulled out mid-show.) plus a copper-MADI option card slot let it interface with DiGiCo SD-Racks, Klang IM, and pretty much any pro digital ecosystem. Sits below the Quantum range but above the SD9 / S-series in capability.
The SD12 is DiGiCo's answer to the mid-size touring and theater console that actually has to do everything: front-of-houseFront Of House — the main mix the audience hears, and the console position out in the room where it gets mixed., monitors, broadcast splits, and stem feeds to a playback rig, often simultaneously. It runs DiGiCo's Stealth Digital Processing engine — the same core that powered the SD7 and SD5 on arena tours — inside a 72-input, 36-output frame with dual 17-inch touchscreens. It is not a rack unitThe standard slice of rack height: 1U = 1.75″. A 3U box takes three slices; half-rack gear pairs two units side by side in one. and it is not a stageboxThe I/O endpoint on stage: mics plug in there and one digital line (AES50, Dante) carries everything to the console. The snake, digitized.; it is a full console that sits at the center of a rig and expects everything else to orbit around it.
The connectivity picture is what makes the SD12 practical at load-in. Four local XLRThe standard 3-pin locking connector for mics and balanced line signals — pin 1 is the shield, pins 2 and 3 carry the balanced pair. inputs handle talkbackThe engineer’s mic into the performers’ ears or monitors — talk to the band without leaving the console., commsProduction intercom — the wired or wireless party line connecting FOH, monitors, stage managers, and lighting during a show., or a quick local source without unwrapping a stageboxThe I/O endpoint on stage: mics plug in there and one digital line (AES50, Dante) carries everything to the console. The snake, digitized., and the eight local XLR outputs give you direct analog feeds for in-ear transmitters, broadcast hops, or a confidence wedgeA floor monitor speaker angled up at the performer — the thing IEMs replace, and the thing you fall back on when they die. without touching MADIA pro digital format carrying 64 channels on one coax or optical cable. Point-to-point — one sender, one receiver, no network required.. The dual BNCThe twist-lock coax connector used for word clock and antenna runs — it locks, so it can’t be pulled out mid-show. MADI ports — A and B — run redundantA second copy of anything critical — supply, computer, network path — already running so one failure can’t stop the show. simultaneously, so a cable fault mid-show doesn't end the gig. An option card slot adds a third MADI path, which is where Klang, a multitrack recorder, or a second SD-Rack typically lives. Dual IECThe standard three-prong appliance power inlet on rack gear — the kettle lead. C13/C14 in spec-sheet speak. power inputs mean you can feed A and B feeds from separate distroOne pair of antennas feeding many receivers through an amplified splitter — replaces the forest of whips and keeps RF levels consistent. legs. Normal draw sits at 200 W, with a 280 W peak — plan your distro accordingly, but it's not a heavy hitter by console standards.
If you're running an IEMIn-Ear Monitor — earpieces that replace floor wedges, feeding each player their own mix. The reason this whole rack exists. rig or a monitor worldThe side-stage domain of the monitor engineer — console, IEM racks, and everything feeding the band’s ears instead of the audience. that needs real DSPDigital Signal Processing — the number-crunching that does EQ, compression, and effects inside a box. More DSP means more processing at once. headroomThe margin between your normal level and where things clip — headroom is what absorbs the snare hit you didn’t see coming., flexible bussing, and a direct DiGiCo ecosystem path to an SD-Rack or Klang unit, the SD12 earns its place. If your show fits cleanly inside a smaller I/O count and you don't need the second screen or the full SD processing architecture, a DiGiCo SD9 or Quantum 225 might serve you better at a lower cost and weight. The 28.5 kg body and 720 mm depth also mean this is a flightcase and dedicated stage position conversation, not a grab-and-go scenario. Engineers who already live in DiGiCo show files will be at home immediately; everyone else should budget time on the workflow before day one of production.
In the rack
- Run MADIA pro digital format carrying 64 channels on one coax or optical cable. Point-to-point — one sender, one receiver, no network required. A and MADI B on physically separate BNCThe twist-lock coax connector used for word clock and antenna runs — it locks, so it can’t be pulled out mid-show. paths to the stageboxThe I/O endpoint on stage: mics plug in there and one digital line (AES50, Dante) carries everything to the console. The snake, digitized. — different cable runs if possible — so a single point of damage doesn't take both redundantA second copy of anything critical — supply, computer, network path — already running so one failure can’t stop the show. feeds at once.
- Plug Power A and Power B into separate distroOne pair of antennas feeding many receivers through an amplified splitter — replaces the forest of whips and keeps RF levels consistent. legs or separate circuits; the dual IECThe standard three-prong appliance power inlet on rack gear — the kettle lead. C13/C14 in spec-sheet speak. inputs only buy you protection if the two feeds are genuinely independent upstream.
- Use the four local XLRThe standard 3-pin locking connector for mics and balanced line signals — pin 1 is the shield, pins 2 and 3 carry the balanced pair. inputs for talkbackThe engineer’s mic into the performers’ ears or monitors — talk to the band without leaving the console. mic and commsProduction intercom — the wired or wireless party line connecting FOH, monitors, stage managers, and lighting during a show. return so those signals never compete for MADIA pro digital format carrying 64 channels on one coax or optical cable. Point-to-point — one sender, one receiver, no network required. channel count or stageboxThe I/O endpoint on stage: mics plug in there and one digital line (AES50, Dante) carries everything to the console. The snake, digitized. bandwidth during soundcheck.
- Save your show file to USB at the end of every day and keep a second USB stick as a venue spare — the SD12's USB port reads standard drives, and a copied show file has saved more than one load-in when a network sync failed.
72 input / 36 output console with dual 17" touchscreens. Sub-flagship DiGiCo for theater + mid-size touring.
I/O Ports (26)
| Port | Connector | Direction | Signal | Channels |
|---|---|---|---|---|
| Local Mic In 1 (XLR) | XLR FEMALE | input | analog audio | — |
| Local Mic In 2 (XLR) | XLR FEMALE | input | analog audio | — |
| Local Mic In 3 (XLR) | XLR FEMALE | input | analog audio | — |
| Local Mic In 4 (XLR) | XLR FEMALE | input | analog audio | — |
| Local Out 1 | XLR MALE | output | analog audio | — |
| Local Out 2 | XLR MALE | output | analog audio | — |
| Local Out 3 | XLR MALE | output | analog audio | — |
| Local Out 4 | XLR MALE | output | analog audio | — |
| Local Out 5 | XLR MALE | output | analog audio | — |
| Local Out 6 | XLR MALE | output | analog audio | — |
| Local Out 7 | XLR MALE | output | analog audio | — |
| Local Out 8 | XLR MALE | output | analog audio | — |
| MADI A In (BNC) | MADI BNC | input | digital audio | 64 |
| MADI A Out (BNC) | MADI BNC | output | digital audio | 64 |
| MADI B In (BNC) [redundant] | MADI BNC | input | digital audio | 64 |
| MADI B Out (BNC) [redundant] | MADI BNC | output | digital audio | 64 |
| Optical / Copper MADI Option Slot | MADI BNC | bidirectional | digital audio | 64 |
| AES In 1-4 (DB25) | DB25 | input | digital audio | 8 |
| AES Out 1-4 (DB25) | DB25 | output | digital audio | 8 |
| Word Clock In (BNC) | BNC | input | digital audio | — |
| Word Clock Out (BNC) | BNC | output | digital audio | — |
| Network (RJ45) | RJ45 | bidirectional | data | — |
| USB (show file storage) | USB A | bidirectional | data | — |
| Headphones (1/4") | TRS QUARTER | output | analog audio | — |
- Power A (IEC) (IEC C14)
- Power B (IEC) [redundant] (IEC C14)
Related gear






Related articles
Guides from our library that cover planning around digital mixer gear.
A walking tour of the signal path from microphone to in-ear monitor, with what every box in the rack actually does to the audio along the way.
Why sealed IEMs make you feel disconnected from the room — and exactly how to put the audience back into your mix with one or two well-placed mics.
Step-by-step: linking aux buses into stereo pairs, pre-fader vs post-fader, routing buses to Ultranet vs physical XLRs vs AES50, and adding a bus-level limiter.
A practical comparison of the three audio-over-network protocols you’ll encounter in a rack rig, with guidance on when each one is the right pick.

