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Studio Technologies announcer’s consoles, intercom and IFB.

model 348 intercom station

Dante and ST 2110 models, from beltpacks and stations to audio engines and party-line interfaces. Varto Technologies quotes them by model or specifies them with your system.

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announcer’s consoles

Announcer’s consoles, by talkback count.

One console per announcer position. On the three Dante models the microphone preamplifier is adjustable from 19 to 64 dB in 3 dB steps, and the main button can be set to push to talk, push to mute or latching, which is how a cough function is made. They differ in talkback count. The 5532, 5534 and 5536 are the ST 2110 consoles, at two, four and six talkback channels.

model 214a · one talkback

model 215a · two talkbacks

model 216a · three talkbacks

Console	Talkback outputs	Network	Sample rates	Powering
Model 214A	One	Dante, AES67 selectable	44.1 or 48 kHz	PoE class 2, or 10 to 18 V DC
Model 215A	Two	Dante, AES67 selectable	44.1 or 48 kHz	PoE class 2, or 10 to 18 V DC
Model 216A	Three	Dante, AES67 selectable	44.1 or 48 kHz	PoE class 2, or 10 to 18 V DC
Models 5532, 5534, 5536	Two, four and six	SMPTE ST 2110-10 and ST 2110-30, with native AES67	48 or 96 kHz	PoE class 3, or external DC

For an ST 2110 plant

The Models 5532, 5534 and 5536 put an announcer’s console on SMPTE ST 2110-30 with native AES67, at two, four and six talkback outputs.

Sample rate

The 214A, 215A and 216A run at 44.1 or 48 kHz. A facility standardized at 96 kHz wants the ST 2110 consoles, or the 232, 234 and 236, which also carry redundant Dante.

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intercom beltpacks

Count the talk keys.

One Ethernet cable carries audio and Power over Ethernet to each pack. What separates them is how many circuits one person works at once, and whether they talk at all.

model 362a · listen only, no microphone

model 370a · two talk channels

model 374a · four talk channels

Beltpack	Talk	Listen	Headset	Also has
Model 362A	None. No microphone at all	2 channels	None. Quarter-inch and 3.5 mm headphone outputs	Listening only: talent cue, IFB, monitoring
Model 370A	2 channels	2 channels	5-pin female XLR	Call send and receive
Model 374A	4 channels	4 channels	5-pin female XLR	Call, two remote control inputs, and a per-channel talk-disabled mode

The 370A and 374A carry a 5-pin female XLR on the unit, so the headset needs the mating 5-pin male plug; Studio Technologies states a stereo or monaural headset works. The Model 371A is the two-channel pack with a 4-pin male connector instead, and Studio Technologies says legacy headsets ending in a 4-pin female connect to it directly. There is no four-channel version of that. The listen-only 362A has no headset connector at all, only quarter-inch and 3.5 mm headphone outputs. Every pack here is 100BASE-TX.

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desk and rack positions

Stations, where the position is a desk.

A station sits on a surface instead of being worn. The 342 and 5304 are compact panels at two and four channels, and the 5304 can already create IFB channels. From the 348 up a station adds a monitor loudspeaker, a gooseneck microphone connector and a second Ethernet port.

model 348 · eight channels

model 5312 · twelve channels, rack mounted

Station	Channels	Powering	What it adds over a beltpack
Model 342	2	PoE class 1	A desk surface instead of a worn pack
Model 5304	4	PoE class 2	A half-rack panel on the desk, and IFB talent cue channels
Model 348	8	PoE class 3 on the primary port, or 12 V DC	Monitor speaker, gooseneck microphone connector, IFB functions, redundant Ethernet
Model 5312	12	AC mains, rack mounted	The 348 idea at twelve channels, rack mounted and mains powered

Powering is not uniform across the four. The 342, 5304 and 348 take Power over Ethernet, at class 1, 2 and 3 respectively, and the 348 also accepts 12 V DC; PoE applies to its primary interface only, so the second port carries audio and not power. The twelve-channel 5312 takes a universal 100 to 240 V AC mains input and mounts in one rack space. Network speed is not uniform either: the 342 and 5304 are 100BASE-TX, while Studio Technologies specifies the 348 and 5312 as 1000BASE-T with 10 and 100 Mb/s not supported. Those two need a gigabit switch port.

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audio engines

Audio engines, where party-line is created.

Dante intercom beltpacks are 4-wire devices, with separate send and receive channels, so a shared party-line is created in a Dante-enabled audio matrix rather than in the packs. Studio Technologies makes two. Beltpacks can also run point to point, or on a Dante-compatible matrix intercom you already have, in which case the mix-minus comes from that system instead.

Engine	Channels	Powering	Ethernet	Size
Model 5421	16, in one to four groups	PoE only, class 2	One gigabit port	Half rack
Model 5422A-01	32, one audio engine	AC mains and/or 12 V DC	Three gigabit ports, redundant Dante	1 RU
Model 5422A-02	64, two audio engines	AC mains and/or 12 V DC	Three gigabit ports, redundant Dante	1 RU

model 5421 · 16 channels, powered over ethernet

model 5422a · 32 or 64 channels in one rack unit

What the 5422A adds over the 5421

Nine group modes, including party-line with Auto Mix, summing bus, pass-thru, IFB and audio switching; three gigabit ports that Dante Controller can set to switched, redundant, or either with a separate management network; redundant Dante; and configuration from a web browser as well as STcontroller. The 5421 runs on Power over Ethernet alone, which is one less thing to lose out of a flypack; the 5422A takes AC mains and 12 V DC, and hands over to the DC source if the mains goes.

Configuration

STcontroller, free from Studio Technologies for Windows and macOS, configures almost every current Dante unit here. Dante Controller handles subscriptions, routing and the 5422A’s Ethernet port mode.

The 5422A-01 and 5422A-02 are the same box from the outside; the difference is one 32-channel audio engine or two. Studio Technologies has announced a Model 5421A and expects to ship it in the fourth quarter of 2026, and points buyers at the 5421 for anything shipping now.

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ifb and interfaces

IFB feeds, and joining the intercom you already have.

Two different jobs. One set of units turns network audio into broadcast-standard IFB for a talent earpiece. The other joins an existing party-line or matrix to Dante, or to a 4-wire port, without replacing it. Pick by what sits on each side and which way the audio travels.

Interface	Joins	Direction	Capacity
Model 543D	Dante to broadcast-standard IFB outputs	One way, to the earpiece	Two powered 2-channel IFB outputs, plus two line-level outputs
Model 545DR	Dante to an RTS TW analog party-line circuit	Two way	One 2-channel circuit, two Dante channels each way, with a 29 V party-line power source
Model 545DC	Dante to Clear-Com compatible analog party-line	Two way	Two single-channel circuits
Model 545AR	Analog 4-wire to analog party-line	Two way	No Dante in the path
Model 46A	2-wire party-line to the 4-wire ports of a matrix intercom	Two way	Two independent 2-channel interfaces
Model 5682	SMPTE ST 2110 audio to Dante	Both directions	32 or 64 channels each way at 48 kHz; half that at 88.2 or 96 kHz

model 543d · dante to ifb

model 545dr · dante to rts party-line

model 5682 · st 2110 to dante

The 543D and the 545DR answer different questions. IFB is one way: the 543D gets program and producer audio out to an earpiece and nothing comes back. The 545DR is a two-way party-line join, with the hybrids and automatic nulling a 2-wire circuit needs, and it powers up to three RTS BP-325 beltpacks from its own supply. For a single-channel Clear-Com circuit instead of RTS, that is the 545DC. The 545AR and the 46A carry no Dante at all: they are analog on both sides, joining a 2-wire party-line circuit to the 4-wire ports on a matrix intercom.

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how it goes together

One engine, PoE switches, and the packs around them.

Studio Technologies publishes an example system. It shows a 5422A serving talk and listen-only packs and a 348 station over PoE switches, with a 545DC and a 545DR bringing existing Clear-Com and RTS beltpacks onto the same virtual party-lines.

Open the full system drawing

The network

A gigabit switch with Power over Ethernet and one port per device. The beltpacks, the 342 and the 5304 link at 100 Mb/s. The 348 and the 5312 are specified 1000BASE-T and need a gigabit port.

Alongside it

Studio Technologies interfaces work with a Clear-Com system.

We plan the switching for a system like this on NETGEAR AV switches, as part of integration.

Clear-Com intercom

buying through varto

Why buy Studio Technologies through Varto?

Announcer’s consoles, beltpacks, stations, audio engines and interfaces, quoted by model or specified with the system they sit in.

select

The right model for each position

Consoles, beltpacks and interfaces matched to your positions, channel counts, sample rate and PoE budget.

quote

Equipment on its own is welcome

Ask for a single console or a set of beltpacks. No project is required.

integrate

Planned on your Dante network

The Dante network, the intercom and the IFB feeds planned with the rest of the production, then commissioned and documented.

Integration

train

Operators learn the system they run

Training on your equipment and workflow, at your facility, online or in East Rutherford.

Training

next step

Quote one console, or plan every position.

Tell us the positions, the talent feeds and the intercom you already run. We will recommend the models and send a quote.

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Or call (888) 656-6233

Authorized Studio Technologies dealer