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Wireless Mic

Shure ULXD4D Dual Digital Wireless Receiver

The Shure ULXD4D packs two full digital wireless channels into 1U, with Dante-networked outputs in addition to analog XLR and 1/4" — rack two and you have four wireless channels in 2U with a single Cat5e back to the console. The industry standard for mid-to-top-tier corporate, theatre, and touring rigs, edged out only by the Axient Digital line at the highest end.

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Photos

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

Photo: Shure1 / 2
Documented outputs
22 destination connections
Documented inputs
5Based on documented inputs
Rack space
1UBuilder checks available rail space
Power draw
14W31.2W documented maximum
Catalog estimate
~$3,475Use 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

Wireless Mic decisions, organized around the whole rig.

The ULXD4D is Shure's answer to the question every production manager eventually asks: how do you get two professional wireless channels into 1U without compromising the RF performance you actually need on a real show? It lands squarely in the ULX-D line, which sits between the workmanlike SLX-D and the top-tier Axient Digital family — which is exactly where most corporate, theatrical, and club-level touring rigs live. Two discrete channels, full digital audio path, Dante networking baked in, and analog XLR outputs for rigs that haven't made the network jump yet. It's the pro workhorse that's earned that label by showing up night after night.

Documented outputs
22 destination connections
Documented inputs
5Based on documented inputs
Rack space
1UBuilder checks available rail space
Shure ULXD4D Dual Digital Wireless Receiver — rear panel with antenna BNC, XLR outputs and network ports
Photo: Shure1U · 14W
Function

How it works in the path

At 1U and 14 watts typical draw, the space and power math is straightforward — two channels cost you one rack unit and comfortably fit on a single 20-amp circuit alongside your other gear. The real operational story is in the outputs: both XLR channels are always live, and the primary and secondary Dante EtherCon ports carry both channels simultaneously, so you can run analog as a fallback without touching a cable during the show. The 370mm depth means it needs a full-depth rack, not a shallow road case shelf. At 3.5 kg, two stacked units add 7 kg to your rack weight — worth noting when you're calculating caster load.

Best fit

Where it earns its place in the rack

This receiver belongs in rigs where RF reliability and clean digital gain structure matter more than saving $500. If you're running a single vocal channel at a small club, the investment doesn't scale. If you're running four to eight channels for theatre, corporate general sessions, or a touring support act, two ULXD4Ds in 2U with a single Cat5e run to a Dante-capable console is a genuinely elegant solution. Engineers who need frequency agility, encrypted transmission, or automatic frequency management across a large RF environment should be looking one step up at Axient Digital instead — the ULXD4D doesn't offer ShowLink remote control or the same interference avoidance depth.

In the rack

Details worth deciding before load-in.

  • If you're running two ULXD4Ds for four wireless channels, connect both units to the same Dante Primary network switch and assign them consecutive channel numbers in Shure Wireless Workbench — scanning and coordination across all four channels becomes a single operation rather than two separate sessions.
  • Use the Dante Secondary port as a redundant network path to a second switch or directly back to a redundant NIC on your playback or console computer — it's there precisely for no-dropout scenarios, and leaving it unplugged on a high-stakes show is leaving insurance on the table.
  • The analog XLR outputs are summed from the digital path, not a separate analog stage, so there's no gain to be had by preferring analog on a Dante rig — use Dante as your primary and leave XLR patched to a nearby analog input as a hot standby, not as a parallel feed to the same console channel.
  • Plan for the 370mm depth before you build the rack — if your road case interior is shallower than about 400mm with connector clearance, the ULXD4D and its BNC antenna cables will not close the lid.

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

5 documented inputs

bnc + IEC C14

Arrives as
5 documented inputs
Connector
bnc + IEC C14
Signal
antenna

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 · Wireless Mic

Use it when 1U and 274 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 DANTE; 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.

Front panel
Rear panel
All documented ports for Shure ULXD4D Dual Digital Wireless Receiver
PortPanelConnectorDirectionSignalChannels
OUTPUT 1rearXLR male outputanalog audio—
OUTPUT 2rearXLR male outputanalog audio—
PRIMARYrearRJ45 bidirectionaldigital audio2
SECONDARYrearRJ45 bidirectionaldigital audio2
ANTENNA Arearbnc inputantenna—
ANTENNA Brearbnc inputantenna—
CASCADE Arearbnc inputantenna—
CASCADE Brearbnc inputantenna—
AC POWERrearIEC C14 inputpower—

Showing 9 of 9 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
Shure ULXD4D Dual Digital Wireless Receiver — front panel
Shure AD4D Axient Digital Dual Mic Receiver — front panel
Shure SLXD4QDAN Quad Receiver (Dante) — front panel
Shure ULXD4Q Quad Receiver — front panel
Fit📐 1U📐 1U📐 1U📐 1U
Power⚡ 14W⚡ 15W⚡ 22W⚡ 30W
Weight⚖️ 7.4 lb⚖️ 10.1 lb⚖️ 5.5 lb⚖️ 7.6 lb
I/O🔌 9🔌 18🔌 12🔌 11
Estimate💵 ~$3,475💵 ~$6,499💵 ~$3,519💵 ~$6,950
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 Shure ULXD4D Dual Digital Wireless Receiver affect rack fit and case depth?

It occupies 1U. Its documented depth is 274 mm.

How much power does the Shure ULXD4D Dual Digital Wireless Receiver draw?

Typical draw is 14W and documented maximum draw is 31.2W.

What connections does the Shure ULXD4D Dual Digital Wireless Receiver have?

9 documented physical ports, including OUTPUT 1, OUTPUT 2, PRIMARY, SECONDARY, ANTENNA A, ANTENNA B.

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
ULXD4D Dual Digital Wireless Receiver positioned in a rack planA simplified plan shows the unit taking 1 rack units, with its documented connection path continuing to a planned destination.ShureULXD4DCONNECTED GEARnext signal destination1U · 274 mm deep

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

Sennheiser EM 300 G4 Wireless Mic Receiver — front panel with antennas

Wireless Mic

Sennheiser EM 300 G4 Wireless Mic Receiver

1U · half-rack · 7 ports · ~$749
Sennheiser EM 500 G4 Wireless Mic Receiver — front panel with antennas

Wireless Mic

Sennheiser EM 500 G4 Wireless Mic Receiver

1U · half-rack · 7 ports · ~$999
Shure QLXD4 Single Digital Wireless Receiver — front panel

Wireless Mic

Shure QLXD4 Single Digital Wireless Receiver

1U · half-rack · 6 ports · ~$747
Shure SLXD4 Wireless Mic Receiver — front panel

Wireless Mic

Shure SLXD4 Wireless Mic Receiver

1U · half-rack · 6 ports · ~$499
Shure SLXD4D Dual Wireless Mic Receiver — front panel

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Shure SLXD4D Dual Wireless Mic Receiver

1U · 8 ports · ~$899
Shure SLXD4Q Quad Receiver — front panel

Wireless Mic

Shure SLXD4Q Quad Receiver

1U · 7 ports · ~$2,639

Planning guides for wireless mic systems.

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