01 · Source
16 documented inputs
XLR/TRS combo + IEC C14
- Arrives as
- 16 documented inputs
- Connector
- XLR/TRS combo + IEC C14
- Signal
- analog audio
Audio Interface
Solid State Logic SSL 18
Solid State Logic SSL 18 USB-C Audio Interface. Plan its source-defined physical connections and placement in your rig.
- Documented outputs
- 1717 destination connections
- Documented inputs
- 16Based on documented inputs
- Rack space
- 1UBuilder checks available rail space
- Power draw
- UnverifiedPower requirement is not verified in the catalog
- Catalog estimate
- ~$1,199.99Use 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
Audio Interface decisions, organized around the whole rig.
Solid State Logic SSL 18 USB-C Audio Interface. Plan its source-defined physical connections and placement in your rig.
- Documented outputs
- 1717 destination connections
- Documented inputs
- 16Based on documented inputs
- Rack space
- 1UBuilder 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 · Audio Interface
Use it when 1U and 294 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, ¼-inch TRS, IEC C14, bnc. 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 |
|---|---|---|---|---|---|
| INPUT 1 · MIC / LINE / INST | front | XLR/TRS combo | input | analog audio | — |
| INPUT 2 · MIC / LINE / INST | front | XLR/TRS combo | input | analog audio | — |
| HEADPHONES A · INDEPENDENT | front | ¼-inch TRS | output | analog audio | — |
| HEADPHONES B · INDEPENDENT | front | ¼-inch TRS | output | analog audio | — |
| AC IN · 100–240V 50/60Hz | rear | IEC C14 | input | power | — |
| WORD CLOCK OUT · 75 OHM | rear | bnc | output | data | — |
| USB-C · HOST DATA | rear | usb c | bidirectional | data | — |
| MIDI IN · TRS TYPE A | rear | trs eighth | input | data | — |
| MIDI OUT · TRS TYPE A | rear | trs eighth | output | data | — |
| SPDIF IN · COAXIAL | rear | rca | input | data | — |
| SPDIF OUT · COAXIAL | rear | rca | output | data | — |
| ADAT IN 1 | rear | toslink | input | data | — |
| ADAT OUT 1 | rear | toslink | output | data | — |
| ADAT / S/PDIF IN 2 | rear | toslink | input | data | — |
| ADAT / S/PDIF OUT 2 | rear | toslink | output | data | — |
| INSERT RETURN 1 | rear | ¼-inch TRS | input | analog audio | — |
| INSERT RETURN 2 | rear | ¼-inch TRS | input | analog audio | — |
| BALANCED OUTPUT 9 / INSERT SEND 1 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 10 / INSERT SEND 2 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 7 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 8 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 5 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 6 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 3 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 4 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 1 | rear | ¼-inch TRS | output | analog audio | — |
| BALANCED OUTPUT 2 | rear | ¼-inch TRS | output | analog audio | — |
| TALKBACK · MIC / LINE | rear | XLR/TRS combo | input | analog audio | — |
| INPUT 8 · MIC / LINE | rear | XLR/TRS combo | input | analog audio | — |
| INPUT 7 · MIC / LINE | rear | XLR/TRS combo | input | analog audio | — |
| INPUT 6 · MIC / LINE | rear | XLR/TRS combo | input | analog audio | — |
| INPUT 5 · MIC / LINE | rear | XLR/TRS combo | input | analog audio | — |
| INPUT 4 · MIC / LINE | rear | XLR/TRS combo | input | analog audio | — |
| INPUT 3 · MIC / LINE | rear | XLR/TRS combo | input | analog audio | — |
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 | 📐 1U | 📐 1U | 📐 1U |
| Power | ⚡ Unverified | ⚡ Unverified | ⚡ Unverified |
| Weight | ⚖️ 8.3 lb | ⚖️ 8.7 lb | ⚖️ 7.9 lb |
| I/O | 🔌 34 | 🔌 22 | 🔌 27 |
| Estimate | 💵 ~$1,199.99 | 💵 ~$1,200 | 💵 ~$899.99 |
| 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 Solid State Logic SSL 18 affect rack fit and case depth?
It occupies 1U. Its documented depth is 294 mm.
How much power does the Solid State Logic SSL 18 draw?
Its power requirement is not yet verified in the catalog.
What connections does the Solid State Logic SSL 18 have?
34 documented physical ports, including INPUT 1 · MIC / LINE / INST, INPUT 2 · MIC / LINE / INST, HEADPHONES A · INDEPENDENT, HEADPHONES B · INDEPENDENT, AC IN · 100–240V 50/60Hz, WORD CLOCK OUT · 75 OHM.
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.
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