Event intercom: communication between director, cameras and stage

Separate conversations before counting headsets

Review the program with the director and stage team. Note who gives cues, who confirms readiness, and which stations must hear that exchange. Separate technical instructions from the audio intended for the audience.

Count people working simultaneously and stations changing operators. When requesting equipment, add locations, routes, day length, and the changeover you want to prepare. Headset count alone does not describe the conversations needed.

Record who listens and who can speak

Use this table to agree on needs before selecting the system. Fill in who speaks to whom and whether they must reply or only listen. Then compare that list with the exact model’s supported groups and connections.

Also identify path boundaries: where each person works, which equipment they carry, and where they join another route. If the director is far from the rack, show that location on the plan and review access to controls.

Solidcom C1 Pro with hub: review A/B groups

On Solidcom C1 Pro with hub, AB group includes all devices in both groups. Group → Customize defines the distribution in web configuration. Network → Wired Network Setting shows the hub address; the manual describes access through the hub network connection. Also check A/B selection with each headset’s buttons. Manual V2.0, EN-8, EN-14 and EN-15.

We propose calling from every station during rehearsal and recording who hears and who replies. If connecting another intercom, repeat the check with that path.

RS-701: distinguish Talk, Call and volume

On Clear-Com RS-701, volume adjusts listening; Talk enables speaking to the channel and Call alerts the group. The three-pin XLR connectors are for intercom; the four-pin connector is for the headset. RS-701 guide, PDF pages 1–2.

If you hear but are not heard, we propose testing a phrase while holding Talk and asking for it to be repeated. Then reverse roles. Record which direction fails. If using Talk without holding the button, check Talk Latch Enable before rehearsal.

ATEM 2 M/E Constellation HD: director separated from the rack

Production uses SDI channels 15–16 and Engineering uses 13–14. Rear RJ45 Talkback carries sends and receives for both circuits; Ethernet connects the Advanced Panel to the switcher for control. Manual, June 2026, pp. 27 and 130.

If operating an Advanced Panel away from the rack, define where the headset connects and how monitoring and microphone are controlled. During rehearsal, exchange a phrase and reply between director and camera; also listen to the live program output.

Test each path with a phrase and a reply

Before doors open, ask the sending station to identify itself and say a short phrase; have the recipient repeat it. Then reverse roles according to the matrix with the show configuration. Note which path was checked; one conversation between two users does not confirm every other path.

On each device, identify listening and microphone controls according to its manual. If the plan uses different groups, test what each person receives during the change. For URSA cameras, the program and talkback help article already separates program listening from communication.

Also review outputs for the audience, remote participants, and recording. Listen to a sample from every intended destination while the technical conversation takes place. Record observations from that setup; the headset test does not confirm the content of those other paths.

If someone cannot hear, compare each direction separately

Write down who cannot hear whom and whether the other person does receive their voice. Identify station, headset, and configuration. First review conversation and controls for that model; hearing yourself does not prove that others’ voices arrive.

Agree with the technician on a comparison preserving the initial configuration. If changing one element, record it and repeat the same phrase and reply. Leave any unreviewed segment pending. To connect an issue with backups, follow the continuity plan.

Leave the matrix and pending items with operations

Download the intercom worksheet and complete stations, paths, versions, and tests. Mark who resolved each setting and what remains unconfirmed. Share the agreed version with those giving cues and operating systems.

If a user, device, or location changes, review which path needs another test. The camera guide relates communication and coverage; the sound guide helps identify audio destinations. The worksheet retains the test’s scope without replacing the system manual.

If changing users or loading a Green-GO configuration, first prepare station backup and recovery. That guide distinguishes file, local settings, and startup configuration, and proposes checking conversations after the intervention.

Solidcom C1 Pro with hub: when web configuration will not open

First identify the hub and its version in Info. This procedure applies to the Solidcom C1 Pro with hub; do not use it as a procedure for the Roaming Hub or the system without a hub. Note how the computer is connected and which address you tried to open.

Hollyland documents browser access over a cable and the hub’s Wi-Fi in How to Manage Groups, 18/06/2026. For a wired connection, the hub manual, EN-14 instructs you to connect the computer to the network RJ45 port and set its address to the same subnet. The 4-Wire port also uses RJ45 but carries audio: identify the port before connecting.

Read Network → Wired Network Setting and record the IP address, subnet mask, and DHCP status. On the computer, check the address of the interface connected to the hub; if you need to change it for the rehearsal, keep the previous configuration. Open the hub’s IP address in the browser. Over Wi-Fi, connect to the SSID shown in Network → Wifi Setting and check the address of that connection.

Once you gain access, save a screenshot of the groups before making changes. If it still will not open, send support the model, version, port, selected connection, IP address and subnet mask at both ends, and the browser message. Do not treat a restart or reset as proof that audio routing has been resolved.

Solidcom C1 Pro: A/B mixed when another intercom connects

Separate what you need to hear from what you need to send. For example, placing cameras in A and stage management in B is a show decision; then check how the external intercom participates in each conversation. Record that system’s model and interface, and any adapter between the two systems.

The manual, EN-8 and EN-15 distinguishes the AB group preset from Customize and from A/B selection on each headset. Check both. If an operator remains in both groups, changing only the distribution you expected on the hub leaves a check pending at that station.

The official screenshot in UAC, section d) Hub Group Settings shows separate input and output paths: 4 Wire In/Out, UAC In/Out, and PGM, as well as the headsets. Compare these assignments with the direction you need; hearing the outbound path does not verify the return. The table below helps prepare the rehearsal, not select a pinout or adapter.

The GreenGo interface and adapter models have not been provided. We do not present that suggestion as a proven repair.

Outside the program, test each direction: cameras speak, stage management replies, and the external station speaks. Record who received each phrase, which group they were in, and which path you changed. If someone hears a conversation they should not receive, keep the screenshot and repeat the same phrase after a single change. Also check PA, live stream, and recording as described in this guide’s rehearsal.

If you use UAC for a remote station, also follow the guidance on hybrid panel audio and returns. Agree on what that station should receive before selecting the interface in the application.

PGM heard in both groups: trace the source before restarting

If PGM is still heard in both groups after changing its assignment, record the master and remote state before intervening. Check program distribution separately from A/B communication.

The manual, EN-9 describes PGM as a gain adjustment. To review its recipients, also look at the web group configuration. If there are two hubs, record where the program physically enters and how they are interconnected: IP or 4-wire link. These are different paths.

We suggest identifying the leaking audio with a short, recognizable reference. Outside the show, interrupt that source at its sending point and record what stops being heard on each headset. If the same content continues, look for another input carrying it, such as the external intercom or UAC. The test identifies paths; it does not by itself confirm a hub fault.

Restore the source and test one assignment at a time. Save the groups screen and the A/B selection of the listening stations. Compare before and after with the same reference. If the audio returns when another link is enabled, add that path to the worksheet instead of repeating gain changes.

For IP cascading, the manual, EN-18 specifies a Master Device, a Remote Device that selects the master using Scan, and automatic IP acquisition disabled on both hubs. Compare that configuration with your setup; do not apply it as instructions for the analog 4-wire link.

If it persists, share versions, screenshots, the connection between hubs, the program source, and results by station with support. A restart that restores a conversation needs another PGM and groups test. The groups and PGM worksheet has space to record both.

Solidcom C1 Pro without hub: links but does not transmit speech

Check a phrase in each direction, even if the indicator is already steady. Record who hears whom, the headset each person uses, and its version. The link, local microphone monitoring, and conversation between stations are separate checks.

This is the same case, not a second experience confirming the cause.

Compare versions by component with the official firmware release notes, not just the name of a downloaded folder. Hollyland publishes different versions for hubs and headsets. The table summarizes the information consulted on 11/10/2026; use it to check documented compatibility, not as an instruction to install those files.

Prepare a comparison outside the show with an identified master and remote. Check power, listening volume, and TALK/MUTE; ask each person to repeat the other person’s phrase. Then add the other stations one at a time. If the problem follows a unit or appears when it is added, save that result and its versions for support.

If firmware intervention is appropriate, choose the tutorial for the model and setup on the official page. In Headset (no HUB), Hollyland requires sufficient power, keeping the USB connection in place, and pairing again afterward; it also warns that settings are reset and advises avoiding updates when the system is needed for use. Record the previous state and repeat the conversations afterward. That intervention was not performed in this guide.

When switching from hub to standalone kit, check master and remotes

Physically identify the roles before pairing again. The C1 Pro No Hub V4.0 manual, EN-2 shows a red nameplate for the master and blue for the remote. Hollyland explains in Master Headset Pair with the Hub that the C1 Pro master pairs only with remotes, not with the hub. Do not include it as if it were another remote in the base-station system.

When adding a headset to the kit without a hub, follow Pairing, EN-3: with the units powered on, hold A on the master and remote for five seconds. The indicator stopping flashing and staying on identifies the link. Check speech in both directions; normal indicators are not enough to verify audio.

In the system without a hub, Hollyland describes A for pairing and B as having no function; A/B groups apply to the setup with a hub. Also check TALK/MUTE and microphone boom position: group selection and enabling speech require different controls depending on the setup.

For the rehearsal, record which master was used and which remotes were added. If you switch to another kit or bring the base station back, prepare its configuration and repeat the planned conversations. Keep the standalone kit result separate from the hub setup result so the replacement can be checked before it is needed.

Use the roles, versions, and audio worksheet to save identifiers and results. Connect the replacement plan with the continuity plan and the show’s camera positions.

Does an update allow expanding from eight to eleven headsets?

When requesting a kit, use the documented capacity of the model and mode you will deploy. We do not use it as a C1 Pro specification.

The No Hub V4.0 manual, EN-3 allows pairing a master with up to seven remotes: eight headsets in total. That limit describes the system without a hub. The firmware notes consulted do not provide a verified procedure to turn it into an eleven-headset standalone kit.

If you need more stations, prepare the conversation matrix and review another configuration using its corresponding manual. Record simultaneous users, location, groups, and replacement arrangements. Adding a base station or changing models changes the setup that needs rehearsing; another unit’s capacity does not by itself expand that of the standalone kit.

To coordinate this with GLMedia, send us that matrix along with available models and versions. The production and technical coordination service lets us review the required conversations and rehearsal scope without confirming equipment or capacity that has yet to be defined.

MCXD: when a tap changes channel monitoring

The following review applies to MCXD according to its manual. Identify the station and firmware before applying the controls.

In MCXD, Screen Functions → Listen Mode Function, tapping an assigned channel in Listen mode toggles its monitoring between active and muted. The physical button may have a different function: Device → Device Settings → Button offers Talk Only or Mode. With Talk Only, it controls Talk; with Mode, it follows the selected screen function. Before the rehearsal, record both settings and show the operator what each control does.

If a conversation disappears after a tap, check User → Channels → ID → Listen on that channel. On and Muted indicate its listening state; Level is a separate setting. We suggest comparing the same phrase before and after restoring monitoring with an identified participant. Save the initial state and result without changing the channel destination at the same time.

Call and Cue provide signaling functions: changing them to avoid muting may send a notification the operator did not expect. We did not find a universal setting for disabling touch muting in the sections consulted. If you need that behavior, leave the exact configuration for your station and firmware pending. Prepare the review outside the show.

WBPX: you hear but the other station does not receive your voice

Separate destination, Talk activation, and microphone input. Perform the check near the antenna with another identified station so you can compare the response.

In WBPX, User → Channels → ID, Assign defines the primary destination. Listen Override can select another source for monitoring without changing the Talk destination. Receiving a conversation therefore does not confirm that you are replying to the same group. Also check Talk Mode: Disabled prevents speaking; Momentary requires holding the control. Latch and Latch/Mom allow latching depending on the gesture. Test the mode the operator will use and ask the recipient to repeat your phrase.

Then look at the Audio controls described under Audio Profile in the manual. Source must match the microphone: Headset selects that input; the other documented options are tones. Check the exact headset and adapter before changing Headset Bias. On WBPX, bias reaches up to 2.5 V; capsule type alone does not demonstrate compatibility.

Gate Threshold rejects audio below its threshold. Record Gain and Gate Threshold, then compare a phrase spoken at normal volume after a single adjustment outside operation. Do not automatically turn gain all the way up: it will not correct an incorrect destination or Talk configuration. Sidetone returns the microphone to local monitoring; confirmation from the other station is still necessary.

If speech fails only in certain locations with a known compatible reference headset and a verified path, continue with the RF coverage and return guide. Keep the results from the test near the antenna to compare the route.

PGA31 and SE215: check bias and load before adapting a headset

The PGA31 manual, 27A21259 Rev. 1, PDF page 2 specifies an electret capsule, TA4F connector, and nominal bias of +5 V, 10 V maximum. The measurement note explains that it can operate at a lower voltage with somewhat less headroom and sensitivity. It does not specify 5 V as a minimum or confirm operation with the WBPX maximum of 2.5 V. The reference to 48 V belongs to the measurement setup with a preamplifier; it is not an instruction to power the TA4F directly.

For monitoring, SE215 version 1.1 (2024-I), PDF pages 6–7 specifies 17 Ω at 1 kHz and MMCX connectors. The WBPX manual, Bottom panel → Headset Connector supports headset loads between 32 and 600 Ω. The SE215 falls outside that range. The 120 Ω in Audio Outputs describes the beltpack’s output impedance; it does not replace the supported load range.

Having four contacts does not define the wiring or ensure compatible power and load. Before selecting an adapter, gather the beltpack diagram, microphone diagram, and earphone connection details. If any are missing, leave the adaptation pending.

To separate a beltpack fault from the adaptation, we suggest starting with a headset with documented compatibility and keeping that reference. An interface or adapter requires documentation for the combination and its own check; we do not present component values for building one. Shure instructs users not to modify the SE215 in its guide.

Complete the headset controls and compatibility worksheet. It leaves room for what still needs testing. Add it to the conversation matrix when preparing production and technical coordination.