Shadow Rack v0.5.0

Docs/WING Extension

The WING Extension

What changes when you set a Behringer WING as the interface and plug in its network cable - the desk becomes part of the rack and the in-ears.

WING Extension Written for v0.5.0 6 min read Updated 5 October 2026

Shadow Rack works with any audio interface, a WING included. The WING Extension is the add-on that makes the desk and the rack one system: the desk's routing, names, SEL, custom controls and safety switch all start working with Shadow Rack. There's no setup page for it. Pick the WING as your interface, plug in its network cable, and it switches on.

The mixer with the WING Extension on
  1. 1The interface: the WING over USB
  2. 2Latency: MAC and the LOOP measured through the desk
  3. 3The WING display: the link to the desk and the safety switch
  4. 4ROUTING: the desk's routing pages
  5. 5+ CHANNEL opens the routing: channels come from the desk
  6. 6Mains get the WING's speaker limiter

A WING with and without the extension since 0.5#

Without the extension a WING is a plain audio interface, like any other. With it:

WING as a plain interfaceWith the WING Extension
ChannelsYou add mono / stereo channels and pick their inputs and outputs yourselfPress RACK on any WING channel, aux, bus, main or matrix and the desk's routing sets itself up (routing)
Names, colours, iconsSet in Shadow RackCome from the desk; changes in Shadow Rack go back to the desk (desk sync)
Picking a channelClick it in Shadow RackPress SEL on the desk too
If the Mac failsShadow Rack restarts with the rack as it wasThe same, and the desk goes to DIRECT first (safety switch)
Hands onAny MIDI controller, learnt onto the controlsThe WING's own custom controls run the rack: three pages written to the desk (custom controls)
Speaker protection-The WING's Precision Limiter on the mains, set up from Shadow Rack (limiter)
Loop latencyRoute a USB output back to a USB input on the desk, press MEASUREMeasured by itself through the desk (latency)
New YorkOn the interface's outputsOn a desk fader of its own, in the USER 1 layer (New York on the desk)
In-ears (Rack IEM)The interface's inputs and outputsAny desk channel, mixes out of the desk's outputs, a backup bus if the in-ear engine stops (Rack IEM on a WING)

What it needs#

  1. The licence includes the WING Extension, and it's switched on in Setup > Licence (see your licence). Switching a module on or off takes a restart. The extension adds to Rack FX or Rack IEM - on its own it doesn't open the app.
  2. The WING is the chosen interface in Setup > Audio. Audio goes over USB, as with any interface. The Audio page then says WING: the channels come from the Wing's routing (ROUTING at the top).
  3. The desk's network port is connected to the Mac - straight with a cable, or through a router. The network only carries control: routing, names, custom controls, meters. No audio goes over it.

There's no "with the WING" switch. The interface you pick decides: choose the WING and Shadow Rack says Working with the Wing: channels come from the Wing's routing; choose anything else and the WING part switches off, network link included. The ROUTING button and the routing view need Rack FX; with Rack IEM alone you get the in-ear parts.

How Shadow Rack finds the desk#

You don't type anything in the normal case. Shadow Rack asks the network for a WING every 1.5 seconds - at the last address it knew, and as a broadcast on every network the Mac is on - and connects to the desk that answers.

If it doesn't find it (an unusual network, a router that blocks broadcasts), open ROUTING. Until a desk is connected every routing page shows CONNECT THE WING, with a box for the address:

  1. On the desk, look up its IP address under SETUP > NETWORK.
  2. Type it in the box Wing IP address (empty = find it) on the routing page.
  3. Press CONNECT (or Return). An empty box goes back to searching by itself.

Once connected, the status line at the top of the routing view shows the desk's name, IP, firmware, how many strips are on the rack and how many FX slots are free. While Shadow Rack reads the desk for the first time, it says Reading the Wing... – until then it doesn't judge anything.

Two WINGs on one network#

Shadow Rack remembers its desk by serial number. A second WING on the same network - the monitor desk, say - isn't taken over. It only switches to another desk when you type that desk's IP, or when its own desk hasn't answered for 15 seconds and nothing on the rack belongs to it.

The WING display on the top bar#

Next to ROUTING sits the WING display. It's the link to the desk and the safety switch in one.

It saysLampMeaning
off-The link is off
looking...-Searching for the desk, or the desk stopped answering
connecteddimConnected, nothing on the rack yet
THROUGH RACKgreenConnected; the strips on the rack play through Shadow Rack
DIRECTredConnected; every strip on the rack plays its own source on the desk

Click it while something is on the rack and it switches between THROUGH RACK and DIRECT. With nothing on the rack, a click opens the routing.

When the connection drops#

After 6 seconds without an answer the display goes back to looking... and the routing pages show CONNECT THE WING again. The sound doesn't change: audio runs over USB, and the desk keeps its routing exactly as it was - through the rack or direct.

  • Renames, colours and icons you change meanwhile are sent when the desk is back.
  • The crash safety net keeps the last known state, so a crash during a network blip still puts the desk on DIRECT - as long as the desk can be reached.
  • A rack channel that a desk channel plays through can't be deleted while the desk is away (Can't delete ... now): the desk channel would go silent.
  • When the desk is back and the WING's USB audio is missing (the Mac slept, a dock took network and USB together), the desk is put on DIRECT.

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