Application design · hospitality
Hotel ballrooms sound system
Meeting by day, banquet by night, with a system the hotel AV team can run.
Reference application image. Client names are withheld; the equipment schedule is confirmed per project.
Modes: 2+ · Coverage: Seating plane · Low frequency: Controlled
The design brief
What the space has to do
A hotel ballroom changes use several times a week. This morning it is a conference with a head table and a projector; tonight it is a wedding with a band and a dance floor. The audio system has to switch between speech and music without an engineer re-patching the room.
The design starts with the room’s maximum seat count and ceiling height. A line array or point-source cluster covers the seating plane; subwoofers support music; stage monitors support the presenter and the band. The DSP stores a meeting preset and a banquet preset, and the hotel AV team selects the mode.
Design checks
| Parameter | Value | Note |
|---|---|---|
| Modes | 2+ | meeting and banquet presets |
| Coverage | Seating plane | array aim follows the room section |
| Low frequency | Controlled | subwoofer placement and delay |
| Operation | Presets | hotel AV team can run it |
Interface & responsibility
What has to be agreed before installation
The acoustic design is only half the job. These interfaces decide whether the system can be installed, tested and accepted.
| Interface | Typical arrangement | Who provides | Confirm |
|---|---|---|---|
| Stage / rigging | Array and monitor positions | Local rigger / SONTRA design | Load and height |
| Power distribution | Amplifier and lighting load | Electrical contractor | Capacity and phases |
| AV control | Presets and operator panel | SONTRA / venue AV team | Operator training |
| Event operation | Wireless and playback | Venue AV team | Operating procedure |
What usually goes wrong
Three physical problems, not three products
Two room modes
Speech needs intelligibility and controlled low frequency; music needs a fuller response. The presets have to differ.
Changing furniture
The table layout changes the coverage. The loudspeaker aim and the delay may need a second preset.
Hotel staff operation
The AV team may not be audio engineers. The control interface has to be simple and repeatable.
The design response
What we change in the system
Main array
A line array per side or a central cluster, aimed at the seating plane. The array length follows the room height and throw.
Subwoofers
Subwoofers support music and add body to speech. The placement and delay are tuned with the main array.
Stage monitoring
Two to four stage monitors for the presenter and the band. A separate monitor mix where needed.
Presets
Meeting, banquet and performance presets. The hotel selects the mode; the DSP sets the routing and EQ.
Zone schedule
A starting point for the zoning
The final zone list follows the building’s operation and fire compartments. This is the typical structure.
| Zone | Need | Typical kit |
|---|---|---|
| Stage / head table | Speech and monitoring | Line array, stage monitors, wireless mics |
| Banquet floor | Even music and speech coverage | Main array, delay, subwoofers |
| Dance floor | Music level and low frequency | Subwoofers, front fill |
| Pre-function / foyer | Background music and overflow | Ceiling loudspeakers, separate zone |
Equipment families
The blocks used in this design
These are the families that usually make up the system. The final model list follows the zone schedule and the certification route.
Ballroom line · reinforcementBallroom & stage sound
Line arrays, point-source loudspeakers, subwoofers, stage monitors and amplifiers for hotel ballrooms, convention halls and event venues.
Ballroom line · stageWireless microphones & stage lighting
Handheld, lavalier and headset wireless systems, antenna distribution, stage lighting and control for ballrooms, event venues and multi-purpose halls.
Conference line · reinforcementConference room sound reinforcement
Ceiling, wall and line-array loudspeakers, amplifiers and audio processing for meeting rooms, boardrooms, lecture theatres and multi-purpose halls.
PA line · everydayBackground music systems
Music sources, players, zone volume control and loudspeaker selection for hotels, retail, restaurants, offices and public areas — with the paging and fire override designed in from the start.
Related applications
Adjacent spaces, different rules
Convention centres & multi-purpose halls
Dividable halls, large audiences and a technical team that needs the room to reconfigure quickly.
View application design
Weddings & event venues
A system that a venue team can set up for a ceremony, a banquet and a dance floor without an audio engineer.
View application design
Hotel public areas
Lobby, restaurants, corridors, spa and pool — one background-music system with the ballroom and the fire alarm on speaking terms.
View application designQuestions
Frequently asked questions
The questions that usually decide the scope: loudspeaker count, amplifier size, fire interface, certification and who installs the system. If your question is not here, send it with the building data.
Ask an application engineerCan one system handle both a conference and a wedding?
Yes, with two presets and enough loudspeaker headroom. The meeting preset prioritises speech intelligibility; the banquet preset adds music level and low frequency. The system is tuned with the room furnished.
How many wireless microphones does a hotel ballroom need?
A practical starting point is two handhelds and two lavaliers, plus a spare transmitter. A larger event may need more. The RF plan and the local frequency regulations decide the final count.
Can the hotel AV team operate the system?
Yes. The control interface is reduced to clear presets and a master level. A written operating procedure and a training session are part of the handover.
Do you provide the stage and lighting?
We provide audio equipment and, where requested, stage lighting fixtures and control. Stage construction, rigging and event production are by others. The interface between the audio, lighting and stage is coordinated during design.
Next step
Send the room data once
A sketch, a room schedule or a drawing link is enough to start. This application can be supplied as a complete package: own-factory equipment, full system configuration and one combined proposal covering the adjacent rooms or systems.
- Room sizes, ceiling height and finishes
- Seat, table or zone count
- Fire interface and applicable standard
- Any ODM / OEM or private-label requirement
Project inquiry
Discuss Hotel ballrooms
Send the room or building data once. We return one combined proposal covering PA, conference, ballroom and AV, with the equipment schedule, interface list and the questions that still need an answer. ODM and OEM inquiries are welcome. Drawings are welcome but not required.