01 · Source
20 documented inputs
XLR/TRS combo + ¼-inch TRS
- Arrives as
- 20 documented inputs
- Connector
- XLR/TRS combo + ¼-inch TRS
- Signal
- analog audio
Digital Mixer
Midas MR18 Digital Mixer
The Midas MR18 is essentially a premium version of the Behringer XR18 with upgraded Midas preamps and build quality, fitting an 18-input mixer into a tabletop stagebox chassis about three rack-spaces tall. The chassis is not a 19" panel — in a rig it gets secured with a rack-ear adapter kit or a shelf, or lives loose on the stage floor. Tablet-controlled via WiFi, it eliminates the need for a physical control surface. It is a strong choice for compact IEM rigs where musicians control their own mixes from personal devices and the engineer manages the show from a tablet at FOH.
Photos
Manufacturer product photography — the drawn faceplate stays true to panel layout; these show the hardware itself.
- Documented outputs
- 1111 destination connections
- Documented inputs
- 20Based on documented inputs
- Rack space
- 3UBuilder checks available rail space
- Power draw
- 30WDocumented typical draw
- Catalog estimate
- ~$799Use retailer rows for current price and stock
01 · What it does—and what that changes in your rig.
Product overview
Start with the payoff, then work through how it functions, where it fits, and the details that change a real build.
The payoff
Digital Mixer decisions, organized around the whole rig.
The Midas MR18 is essentially a premium version of the Behringer XR18 with upgraded Midas preampsThe gain stage that lifts a mic’s tiny signal up to line level — the first thing a signal hits, and a big part of how a console sounds. and build quality, fitting an 18-input mixer into a tabletop stageboxThe I/O endpoint on stage: mics plug in there and one digital line (AES50, Dante) carries everything to the console. The snake, digitized. chassis about three rack-spaces tall. The chassis is not a 19" panel — in a rig it gets secured with a rack-ear adapter kit or a shelf, or lives loose on the stage floor. Tablet-controlled via WiFi, it eliminates the need for a physical control surface. It is a strong choice for compact IEMIn-Ear Monitor — earpieces that replace floor wedges, feeding each player their own mix. The reason this whole rack exists. rigs where musicians control their own mixes from personal devices and the engineer manages the show from a tablet at FOHFront Of House — the main mix the audience hears, and the console position out in the room where it gets mixed..
- Documented outputs
- 1111 destination connections
- Documented inputs
- 20Based on documented inputs
- Rack space
- 3UBuilder checks available rail space
02 · Know the whole path before you buy.
Signal path
Learn the route as a block diagram: source, product function, transport, and destination. Select any block to see what enters, what changes, and what leaves.
Interactive block diagramAuto-looping · hover, focus, or tap to hold a stage
Port-type signalProduct functionSystem boundary
Follow one signal from source to destination
01 · Source · selectedEach block answers the same three questions: what arrives, what changes here, and what leaves.
03 · What this product asks of the rest of the system.
Compatibility
Treat connector names as the start of the check—not the answer. These are the boundaries that determine a complete working path.
Best fit · Digital Mixer
Use it when 3U and 149 mm of depth fit the case.
Plan the companion path
Complete the path with upstream and downstream gear that matches connector, direction, signal type, protocol, and wiring standard.
Protocol boundary
This product declares ULTRANET; matching plugs alone do not make other protocols compatible.
04 · Every connector, grouped by job.
I/O ports
Switch the product view and the documented port inventory updates with it—hardware and data stay side by side.
Every connector, grouped by job.
Switch panels to keep the hardware view and the documented port list in sync.
| Port | Panel | Connector | Direction | Signal | Channels |
|---|---|---|---|---|---|
| IN 1 | rear | XLR/TRS combo | input | analog audio | — |
| IN 2 | rear | XLR/TRS combo | input | analog audio | — |
| IN 3 | rear | XLR/TRS combo | input | analog audio | — |
| IN 4 | rear | XLR/TRS combo | input | analog audio | — |
| IN 5 | rear | XLR/TRS combo | input | analog audio | — |
| IN 6 | rear | XLR/TRS combo | input | analog audio | — |
| IN 7 | rear | XLR/TRS combo | input | analog audio | — |
| IN 8 | rear | XLR/TRS combo | input | analog audio | — |
| IN 9 | rear | XLR/TRS combo | input | analog audio | — |
| IN 10 | rear | XLR/TRS combo | input | analog audio | — |
| IN 11 | rear | XLR/TRS combo | input | analog audio | — |
| IN 12 | rear | XLR/TRS combo | input | analog audio | — |
| IN 13 | rear | XLR/TRS combo | input | analog audio | — |
| IN 14 | rear | XLR/TRS combo | input | analog audio | — |
| IN 15 | rear | XLR/TRS combo | input | analog audio | — |
| IN 16 | rear | XLR/TRS combo | input | analog audio | — |
| LINE 17 | rear | ¼-inch TRS | input | analog audio | — |
| LINE 18 | rear | ¼-inch TRS | input | analog audio | — |
| AUX 1 | rear | XLR male | output | analog audio | — |
| AUX 2 | rear | XLR male | output | analog audio | — |
| AUX 3 | rear | XLR male | output | analog audio | — |
| AUX 4 | rear | XLR male | output | analog audio | — |
| AUX 5 | rear | XLR male | output | analog audio | — |
| AUX 6 | rear | XLR male | output | analog audio | — |
| MAIN L | rear | XLR male | output | analog audio | — |
| MAIN R | rear | XLR male | output | analog audio | — |
| PHONES | rear | ¼-inch TRS | output | analog audio | — |
| ULTRANET | rear | RJ45 | output | digital audio | 16 |
| MIDI IN | rear | midi din5 | input | data | — |
| MIDI OUT | rear | midi din5 | output | data | — |
| USB | rear | usb b | bidirectional | data | — |
| ETHERNET | rear | RJ45 | bidirectional | data | — |
| AC POWER | rear | IEC C14 | input | power | — |
Showing 33 of 33 documented physical ports. Scroll to review the remaining rows.
05 · Compare the decision, not just the price.
Alternatives
The rows are organized around fit, power, I/O, and system role so a cheaper unit cannot hide a more expensive workflow.
| Compare |  |  |  |  |
|---|---|---|---|---|
| Fit | 📐 3U | 📐 Outside rack | 📐 1U | 📐 5U |
| Power | ⚡ 30W | ⚡ 120W | ⚡ 40W | ⚡ 100W |
| Weight | ⚖️ 8.6 lb | ⚖️ 46.3 lb | ⚖️ 7.7 lb | ⚖️ 31.5 lb |
| I/O | 🔌 33 | 🔌 58 | 🔌 12 | 🔌 30 |
| Estimate | 💵 ~$799 | 💵 ~$4,499 | 💵 ~$999 | 💵 ~$2,999 |
| Deep dive | Current selection | Full comparison → | Full comparison → | Full comparison → |
06 · Resolve the questions that can change the purchase or build plan.
Planning questions
Short, source-backed answers surface rack fit, power, cabling, and connection details before they become surprises.
How will the Midas MR18 Digital Mixer affect rack fit and case depth?
It occupies 3U. Its documented depth is 149 mm.
How much power does the Midas MR18 Digital Mixer draw?
Typical draw is 30W and documented maximum draw is 30W.
What connections does the Midas MR18 Digital Mixer have?
33 documented physical ports, including IN 1, IN 2, IN 3, IN 4, IN 5, IN 6.
07 · See this unit inside a real rack plan.
Builder preview
Placement is only the start. Builder checks space · depth · weight, power headroom, dependencies, and compatible signal paths around this exact catalog item.Open in Builder08 · Related gear, in the order you may need it.
Complete the system
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3U · 53 ports · ~$989
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Behringer X32 Digital Mixer
Outside rack · 57 ports · ~$2,799Digital Mixer
Midas M32R Live Digital Console
5U · 30 ports · ~$2,999Digital Mixer
Midas M32 Live Digital Console
Outside rack · 58 ports · ~$4,499
Digital Mixer
Behringer Wing Rack Digital Console
4U · 52 ports · ~$1,799Digital Mixer
Midas M32C Rack Mixer
1U · 12 ports · ~$999Planning guides for digital mixer systems.
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