01 · Source
18 documented inputs
XLR/TRS combo + XLR female
- Arrives as
- 18 documented inputs
- Connector
- XLR/TRS combo + XLR female
- Signal
- analog audio
Analog Mixers
Mackie ProFX12v3
Mackie ProFX12v3 12-channel Mixer with USB and Effects. Plan its source-defined physical connections and placement in your rig.
- Documented outputs
- 1111 destination connections
- Documented inputs
- 18Based on documented inputs
- Rack space
- 9UBuilder checks available rail space
- Power draw
- 30WDocumented typical draw
- Catalog estimate
- ~$379.99Use 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
Analog Mixers decisions, organized around the whole rig.
Mackie ProFX12v3 12-channel Mixer with USB and Effects. Plan its source-defined physical connections and placement in your rig.
- Documented outputs
- 1111 destination connections
- Documented inputs
- 18Based on documented inputs
- Rack space
- 9UBuilder 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 · Analog Mixers
Use it when 9U and 376 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.
Connector boundary
Documented connectors: XLR/TRS combo, XLR female, ¼-inch TRS, trs eighth. Match connector, direction, and signal type—not shape alone.
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 |
|---|---|---|---|---|---|
| MIC / LINE 1 | front | XLR/TRS combo | input | analog audio | — |
| MIC / LINE 2 | front | XLR/TRS combo | input | analog audio | — |
| MIC 3 | front | XLR female | input | analog audio | — |
| MIC 4 | front | XLR female | input | analog audio | — |
| MIC · CH5/6 | front | XLR female | input | analog audio | — |
| MIC · CH7/8 | front | XLR female | input | analog audio | — |
| MIC · CH9/10 | front | XLR female | input | analog audio | — |
| LINE IN 3 | front | ¼-inch TRS | input | analog audio | — |
| LINE IN 4 | front | ¼-inch TRS | input | analog audio | — |
| LINE IN 5 · L / MONO | front | ¼-inch TRS | input | analog audio | — |
| LINE IN 6 · R | front | ¼-inch TRS | input | analog audio | — |
| LINE IN 7 · L / MONO | front | ¼-inch TRS | input | analog audio | — |
| LINE IN 8 · R | front | ¼-inch TRS | input | analog audio | — |
| LINE IN 9 · L / MONO | front | ¼-inch TRS | input | analog audio | — |
| LINE IN 10 · R | front | ¼-inch TRS | input | analog audio | — |
| INSERT 1 · TIP SEND / RING RETURN | front | ¼-inch TRS | bidirectional | analog audio | — |
| INSERT 2 · TIP SEND / RING RETURN | front | ¼-inch TRS | bidirectional | analog audio | — |
| INSERT 3 · TIP SEND / RING RETURN | front | ¼-inch TRS | bidirectional | analog audio | — |
| INSERT 4 · TIP SEND / RING RETURN | front | ¼-inch TRS | bidirectional | analog audio | — |
| LINE IN 11/12 · STEREO | front | trs eighth | input | analog audio | — |
| MON SEND | front | ¼-inch TRS | output | analog audio | — |
| FX SEND | front | ¼-inch TRS | output | analog audio | — |
| MAIN OUT L · TRS | front | ¼-inch TRS | output | analog audio | — |
| MAIN OUT R · TRS | front | ¼-inch TRS | output | analog audio | — |
| CONTROL ROOM L | front | ¼-inch TRS | output | analog audio | — |
| CONTROL ROOM R | front | ¼-inch TRS | output | analog audio | — |
| SUB OUT 1 | front | ¼-inch TRS | output | analog audio | — |
| SUB OUT 2 | front | ¼-inch TRS | output | analog audio | — |
| PHONES · STEREO | front | ¼-inch TRS | output | analog audio | — |
| MAIN OUT L · XLR | front | XLR male | output | analog audio | — |
| MAIN OUT R · XLR | front | XLR male | output | analog audio | — |
| FOOT SWITCH · FX MUTE | front | ¼-inch TS | input | data | — |
| AC POWER · 100–240V | rear | IEC C14 | input | power | — |
| USB · 2x4 AUDIO | rear | usb b | bidirectional | data | — |
Showing 34 of 34 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 | 📐 9U | 📐 9U | 📐 10U |
| Power | ⚡ 30W | ⚡ 40W | ⚡ 22W |
| Weight | ⚖️ 7.9 lb | ⚖️ 15.2 lb | ⚖️ 9.3 lb |
| I/O | 🔌 34 | 🔌 50 | 🔌 32 |
| Estimate | 💵 ~$379.99 | 💵 ~$599.99 | 💵 ~$365.49 |
| Deep dive | Current selection | 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 Mackie ProFX12v3 affect rack fit and case depth?
It occupies 9U. Its documented depth is 376 mm.
How much power does the Mackie ProFX12v3 draw?
Typical draw is 30W and documented maximum draw is 0W.
What connections does the Mackie ProFX12v3 have?
34 documented physical ports, including MIC / LINE 1, MIC / LINE 2, MIC 3, MIC 4, MIC · CH5/6, MIC · CH7/8.
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.