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Audio Interface

Universal Audio Volt 876

The Universal Audio Volt 876 brings the Volt line into the rack: eight vintage-mode preamps, 24-in/28-out USB-C I/O with 32-bit converters, and ADAT expansion in a 1U chassis for under a thousand dollars. It is the budget-Apollo move for band-sized recording and playback rigs that want UA character without DSP pricing. Released late 2025; found missing by the gear-fit auditor.

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Photos

Manufacturer product photography — the drawn faceplate stays true to panel layout; these show the hardware itself.

Photo: Universal AudioClick to zoom
Documented outputs
33 destination connections
Documented inputs
3Based on documented inputs
Rack space
1UBuilder checks available rail space
Power draw
15W20W documented maximum
Catalog estimate
~$999Use 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.

The Volt 876 is Universal Audio's first rackmount entry in the Volt line, and it lands in a useful spot: a 1U, USB-C interface with eight combo preamps, 32-bit converters, and ADAT I/O for under a thousand dollars. In a live rig it functions as the central analog-to-digital gateway — the place where microphones, DIs, and line-level sources get digitized and handed off to a DAW or playback host running on a connected laptop or workstation. The vintage-mode preamp character UA built into the desktop Volts carries over here, which means you're getting some of that transformer-style saturation option on every input, not just a clean utility box.

Documented outputs
33 destination connections
Documented inputs
3Based on documented inputs
Rack space
1UBuilder checks available rail space
VOLT 8 76
Universal Audio product panel1U · 15W
Function

How it works in the path

Eight combo inputs across the front cover a full band input list without expansion, and the ADAT port lets you bolt on an eight-channel preamp or converter if the show grows. The 8 TRS line outputs give you enough analog paths to feed IEM transmitters, a console, or both without routing everything through a digital snake. At 15W nominal draw and 2.5 kg in a 210mm-deep chassis, it sits comfortably in a shallow gig rack without fighting for space or power budget. The USB-C connection means your host machine needs a reliable cable and port — at show time that single connection is the entire audio path, so strain-relief it seriously.

Best fit

Where it earns its place in the rack

This box makes most sense for a small touring or rehearsal rig where one engineer is running playback and IEM mixes from a laptop, wants real preamps instead of a patchbay full of external pres, and doesn't need Thunderbolt latency or onboard DSP. If you're running Dante or AVB into a digital console, the Volt 876 is the wrong tool — you want a network interface, not a USB box. Similarly, if your workflow depends on UA's LUNA or UAD plug-in processing on the interface itself, this isn't an Apollo; DSP lives in the UAD-2 and Apollo lines, not here. For what it is — an honest, rackmount eight-pre USB interface with expansion room — the price-to-port ratio is hard to argue with.

In the rack

Details worth deciding before load-in.

  • Strain-relief the USB-C cable at both ends with a cable lock or adhesive anchor — losing the host connection mid-show drops every input and output simultaneously.
  • Use the ADAT port to add a dedicated headphone amp expander (any ADAT-equipped unit works) so monitor mixes can be distributed without consuming your eight analog line outputs.
  • If your laptop host goes to sleep or the USB bus resets during a set change, the interface will re-enumerate — set your OS power settings to 'never sleep' and disable USB selective suspend before doors open.
  • The Monitor Out L/R is a separate stereo path from Line Out 1–8, which makes it a clean dedicated control-room or engineer's cue feed without touching your main output routing.

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

Each block answers the same three questions: what arrives, what changes here, and what leaves.

01 · Source · selected
01 · Source

3 documented inputs

XLR/TRS combo + toslink

Arrives as
3 documented inputs
Connector
XLR/TRS combo + toslink
Signal
analog audio

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 210 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, toslink, usb c. 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.

Front panel
VOLT 8 76
Rear panel
Universal AudioVolt 876
All documented ports for Universal Audio Volt 876
PortPanelConnectorDirectionSignalChannels
Mic/Line 1-8rearXLR/TRS combo inputanalog audio8
Line Out 1-8rear¼-inch TRS outputanalog audio8
Monitor Out L/Rrear¼-inch TRS outputanalog audio2
ADAT Inreartoslink inputdigital audio—
ADAT Outreartoslink outputdigital audio—
USB-Crearusb c bidirectionaldata—
PowerrearIEC C14 inputpower—

Showing 7 of 7 documented physical ports.

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
Universal Audio Volt 876
Universal Audio Apollo x16 Gen 2
Universal Audio Apollo x16D (Dante)
Universal Audio Volt 476
Fit📐 1U📐 1U📐 1U📐 1U · half-rack
Power⚡ 15W⚡ 30W⚡ 30W⚡ 5W
Weight⚖️ 5.5 lb⚖️ 11.9 lb⚖️ 9.0 lb⚖️ 1.5 lb
I/O🔌 7🔌 11🔌 7🔌 9
Estimate💵 ~$999💵 ~$3,799💵 ~$2,999💵 ~$399
Deep diveCurrent selectionFull 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 Universal Audio Volt 876 affect rack fit and case depth?

It occupies 1U. Its documented depth is 210 mm.

How much power does the Universal Audio Volt 876 draw?

Typical draw is 15W and documented maximum draw is 20W.

What connections does the Universal Audio Volt 876 have?

7 documented physical ports, including Mic/Line 1-8, Line Out 1-8, Monitor Out L/R, ADAT In, ADAT Out, USB-C.

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 Builder
Volt 876 positioned in a rack planA simplified plan shows the unit taking 1 rack units, with its documented connection path continuing to a planned destination.Universal AudioVolt 876CONNECTED GEARnext signal destination1U · 210 mm deep

08 · Related gear, in the order you may need it.

Planning guides for audio interface systems.