Video Conference Equipment: How to Spec by Room Size

Last updated August 16, 2026

Video conference equipment is specified by room size, not by budget tier. A 16-by-16-foot room seating four to six people needs one all-in-one bar with an integrated microphone array and a single display. A 15-by-32-foot room seating twelve to sixteen needs a separate camera, a ceiling array microphone, a dedicated compute appliance, and either a 21:9 ultrawide or two displays. The variables that actually change between those two rooms are talker-to-microphone distance, camera framing distance, and display legibility at the back seat — nothing else.

Microsoft publishes the room bands it designs Teams Rooms around, and those bands are the most useful starting point a procurement team has. This guide works through each band and states what fails when the equipment is undersized — the failure that shows up three weeks after handover, not on the bill of materials.

Quick answer: Match video conference equipment to Microsoft's four room bands: Focus (10x9 ft, 2-4 people) and Small (16x16 ft, 4-6) need one all-in-one bar and one display. Medium (18x20 ft, 6-12) needs a bar with optical zoom, dedicated compute, and a touch console. Large (15x32 ft, 12-16+) needs separate components - a dual-sensor camera, a ceiling array microphone, dedicated Windows compute, and a 21:9 ultrawide or dual displays. The three measurements that actually drive the decision: talker-to-microphone distance, camera-to-farthest-seat distance, and display legibility from the back row.

How do you match video conference equipment to room size?

Start from the room dimensions and the seat count, then work outward. Microsoft's Teams Rooms requirements documentation gives a deployment template with four bands:

Source: Microsoft Teams Rooms requirements.

Three measurements drive every decision inside those bands. Front-of-room wall to farthest talker decides whether a bar-integrated microphone array is adequate or a ceiling array is required. Camera to farthest seat decides whether you need wide field of view, optical zoom, or two sensors. Display to back of table decides display size and aspect ratio.

Microsoft is also explicit that certification is a hardware bar, not a feature guarantee. Its documentation states: "The Microsoft Teams Devices Certification Program ensures certified devices meet specific requirements for hardware design and performance only. The certification program doesn't evaluate feature-level or cloud environment support." Certified for a small room does not mean it will hold up in a medium one. For the full Teams sizing picture, see our Teams Rooms buyer's guide.

Video conference equipment by room size: comparison table

What video conference equipment does a huddle or small room need?

One all-in-one bar, one display, and no separate compute. That is the whole bill of materials for a room under about 16 by 16 feet seating two to six people, and adding to it wastes money without improving a single meeting.

HP positions the Poly Studio X32 for "huddle or small rooms that need all-in-one video conferencing," specifying it for a 15-by-10-foot space with a 4K 20MP UltraHD camera at 120-degree FOV and microphone pickup "up to 15 ft. / 4.5 m." Logitech describes the Rally Bar Mini as an "all-in-one video bar for small to medium meeting rooms," with a 120-degree diagonal field of view, total room coverage of 163 degrees horizontal by 110 degrees vertical, and microphone pickup "up to 23 ft (7m)." Both run the meeting platform on the bar itself, so there is no PC in the room to patch or replace. For a small room going in on Teams, the Logitech Rally Bar Mini with Tap for Microsoft Teams Rooms pairs the bar with the table console it needs, so the touch controller is not an afterthought. Full ranges are in our Poly video conferencing systems and Logitech video conferencing equipment collections.

The failure mode when you undersize a huddle room is substituting personal-grade hardware — a USB webcam clipped to the display and a portable speakerphone on the table. The webcam's field of view is built for one person at arm's length, so the two people at the ends of a six-foot table sit outside the frame and lean in for the whole call. The speakerphone's acoustic echo cancellation is tuned for a desk, not for a 15-by-10 room with glass on two walls, so the far end hears reverberation instead of speech. Neither problem is fixable in software afterward.

What video conference equipment does a medium conference room need?

A bar with optical reach, a dedicated compute appliance, a touch console on the table, and a display sized for the back seat. Microsoft's medium band is 18 by 20 feet at six to twelve people, which is the point where a fixed wide-angle lens stops working.

HP specifies the Poly Studio X52 for a 20-by-15-foot room with a 95-degree FOV, 20MP 4K UltraHD sensor, and microphone pickup "up to 20 ft. / 6.09 m." HP describes the Poly Studio X50 as designed for rooms accommodating up to ten participants, with dual monitor support, in a chassis 762 x 102 x 102 mm and 2540 g. Logitech's Rally Bar is an "all-in-one video bar for medium to large rooms" with a 90-degree diagonal field of view, 82.1 degrees horizontal, and "Motorized ±25°/±15°/15X HD zoom (5X optical, 3X digital)." The optical component matters. Digital zoom at the far end of an 18-foot table is a crop of the same sensor area, and it looks like one. Specified together, the Logitech Rally Bar and Tap IP bundle for Microsoft Teams Rooms covers the camera, the room audio and the table console for this band. If you would rather keep the meeting platform off the bar, a Logitech RoomMate room appliance runs CollabOS in the credenza and drives the bar as a peripheral, which also lets the same room switch platforms later without new hardware.

The failure mode when you undersize a medium room is treating the published microphone pickup figure as a working distance rather than a maximum. A 23-foot rating on a bar mounted under the display puts the person in the last chair of an 18-foot table at the edge of the specification, with the HVAC diffuser directly overhead. Their gain has to be pushed, the noise comes up with it, and the far end asks them to repeat themselves for the rest of the meeting. Once talker spread exceeds about 12 feet, add a table microphone or move to a ceiling array. The second undersizing failure is a single small display: shared content at 18 to 20 feet of viewing distance has to read as body text, not as a shape, and a 55-inch panel in that room sends everyone back to their laptops.

What video conference equipment does a large conference room need?

Separate components. At the large band — Microsoft's 15-by-32-foot room at twelve to sixteen people, and anything larger — the camera, the microphone, the display and the compute each need to be selected on their own, because no single chassis reaches all four requirements.

Camera. HP specifies the Poly Studio E70 with "Dual cameras (120/70 HFOV 20MP 4K)" — a wide sensor for group framing and a narrow one for the person speaking at distance. The Poly Studio X70 carries the same dual 4K arrangement at 120-degree and 70-degree HFOV, is positioned by HP for "large rooms or spaces that need all-in-one video conferencing" at 30 ft. x 20 ft., with microphone pickup "up to 25 ft. / 7.6 m."

Microphone. A ceiling array, not a table array. Shure's documentation states that both the MXA920 and MXA925 use "over 100 MEMS microphone elements to create up to eight discrete audio beams," with "Automatic Coverage™ enable[ing] fast setup with 30 ft × 30 ft default coverage and the ability to configure up to eight coverage areas." The MXA920 runs IntelliMix DSP with AEC, Virtual Acoustic Boundary and noise reduction at 10.1 W maximum over PoE Class 0; the Shure MXA925W-S AI ceiling array microphone adds "AI-enabled IntelliMix® DSP featuring AI AEC, AI Denoiser, and AI Deverb" at 12.5 W maximum. The square version measures 23.77 in. edge to edge and drops into a standard 2-foot ceiling grid. Shure recommends mounting "up to 12 feet (3.7 meters)" with an optimal talker-to-microphone distance "up to 16 feet (4.9 meters)." Both carry dual RJ45 for Dante/AES67 audio and control.

Display. This is where aspect ratio, not just size, becomes a specification. Microsoft's Front Row documentation states: "In single display mode, the left panel isn't displayed by default for front-of-room displays narrower than 21:9." If a large room is being built for Front Row on a single screen, a 16:9 panel silently drops a layout element the room was purchased for. MAXHUB's UW105NA answers that directly at 105 inches diagonal, 21:9, 5120 x 2160, 400 nits, on a VESA 1000 x 400 pattern at 89.4 kg — roughly 197 pounds of display that needs structural backing in the wall, not drywall anchors.

Compute. A dedicated Teams Rooms on Windows appliance in the credenza or rack, with a wired touch console on the table. Spec it against the screen it has to drive: a MAXHUB UW105NA 105-inch ultrawide display at 5120 x 2160 wants a compute unit rated for that resolution at the room's refresh rate, and the console needs a network drop of its own. Decide the display, the camera and the microphone first, then pick the compute that carries all three — not the other way around.

The failure mode when you undersize a large room is putting one all-in-one bar in it. In a 32-foot room the farthest talker sits eight to ten feet beyond any published bar pickup rating, so they are inaudible until someone slides a laptop down the table. The camera has the same problem from the other direction: framing a person at 25-plus feet from a single sensor under the display produces a recognizable shape, not a face. Undersizing here does not degrade gracefully — it produces a room people avoid booking.

Installation note: PoE budget, cable class, and where the receptacles go

Size the switch by declared PoE class, not by measured draw, and confirm which devices are not PoE at all before the electrician leaves.

Logitech states that "Both Tap IP and Tap Scheduler are PoE Type 1, Class 3 devices and adhere to the 802.3af standard," using "less than 15.4 watts in normal operation," and instructs installers directly: "Please budget for 15.4 watts per port for each connected device." Shure lists the MXA920 and MXA925 as "Power over Ethernet (PoE), Class 0" at 10.1 W and 12.5 W maximum. A Class 0 endpoint gives the switch no usable class signature, so the port reserves the full standard allocation regardless of what the microphone actually consumes. An eight-room floor budgeted on measured draw comes up short against the switch's total power budget, and the symptom is ports dropping under load rather than refusing to come up.

Nothing in that list requires PoE+, which is the second half of the trap. Logitech specifies the Rally Bar and Rally Bar Mini for a "100-240V, 19V, 4.74A" auto-sensing external supply — they are not PoE devices, so a PoE+ switch does not remove the need for a receptacle behind the display. Pull the network drop and the power to the same location, use category cable "meeting or exceeding Cat5e UTP AWG24" as Logitech recommends, and specify plenum-rated cable above an accessible tile ceiling. The MAXHUB UW105NA draws 550 W typical and 665 W maximum — a dedicated circuit conversation, not a spare outlet.

Frequently asked questions

How many people can one video conference bar cover?

It depends on talker distance, not headcount. HP specifies the Poly Studio X32 for a 15-by-10-foot room with pickup to 15 feet, the Studio X52 for 20 by 15 feet with pickup to 20 feet, and the Studio X70 for 30 by 20 feet with pickup to 25 feet. Logitech rates both the Rally Bar and Rally Bar Mini to 23 feet. Measure from the bar to the farthest chair and stay inside the rating with margin.

Do I need a ceiling microphone or is the bar microphone enough?

If every talker sits within the bar's published pickup range with margin, the integrated array is enough. Past that, move to a ceiling array. Shure's MXA920 and MXA925 default to a 30-by-30-foot coverage area with up to eight configurable coverage areas, which covers rooms no bar can reach.

What size display do I need for a conference room?

Size it so shared body text is legible from the farthest seat, and check aspect ratio against the platform. Microsoft's Front Row documentation states that "In single display mode, the left panel isn't displayed by default for front-of-room displays narrower than 21:9," and Microsoft supports a maximum of two front-of-room screens in a Teams Room.

Does video conference equipment need PoE+?

Often not. Logitech's Tap IP is an 802.3af Type 1, Class 3 device, and Shure's MXA920 and MXA925 are PoE Class 0. Logitech's Rally Bar and Rally Bar Mini use an external 19 V supply and are not powered over Ethernet at all. Budget the switch by class allocation and provide receptacles for the devices that need them.

Can the same video conference equipment run Teams and Zoom?

Several of these systems are certified on more than one platform, but scope matters. Microsoft notes that its certification program "doesn't evaluate feature-level or cloud environment support." Confirm the platform build for the specific model before you order.

What does video conference equipment cost for a large conference room?

Cost depends on display size, platform, and how much integration the room needs. Complete large-room systems priced as one configuration, including a 105-inch 21:9 ultrawide display, dual-sensor camera, ceiling array microphone, touch console, and Windows compute, are listed in our meeting room bundles collection with current pricing.

What to do next

Take the room's interior dimensions, the seat count, and the distance from the front-of-room wall to the farthest chair. Those three numbers decide the camera, the microphone, the display and the compute, in that order. Then check the electrical and network drops against the class ratings above before anything is ordered.

Our video conference room bundles are configured by room band, so the four components are specified against each other rather than assembled on site. For a second set of eyes on a room schedule or a bill of materials before it goes to purchasing, call 1.888.230.3661 and talk to an AV design advisor.

Related Resources

• Designing a Future-Proof Conference Room AV System
• Hybrid Meeting Room Technology That Works
• How to Standardize Conference Rooms at Scale
• Deploying Microsoft Teams Rooms: A Buyer's Guide
• Video Conferencing Systems

Creation Networks, Inc. — nationwide commercial AV integrator, CTS-D certified, headquartered in Incline Village, NV with a California office in Concord. Design, engineering, programming, installation, and support from a single point of contact since 2006. Call 888-230-3661 or email sales@creationnetworks.net.