Book a superb singer, put them through a system meant for a smaller room, and your guests will conclude the singer was fine. Book a competent one and give them a properly specified rig with a person mixing it, and the same guests will remember the music. Sound is the least discussed and most decisive variable in live entertainment, and it is almost always settled by default rather than by decision.
This is a guide to deciding it. Not a specification sheet — the numbers on a speaker are the supplier's job — but the questions that determine what you should be asking for, and the one question that causes most of the failures.
Three Questions Decide Almost Everything
- How many people, and how far is the furthest one from the stage? Distance matters more than headcount. A long narrow hall for two hundred is a harder problem than a wide one for three hundred.
- Indoors or outdoors? These are not variations of the same problem. See below.
- Is the music the event, or is it behind the event? Background music during a meal and a headline set demand different things, and an evening that does both needs a system capable of the louder one and an operator disciplined enough to do the quieter one.
A Room of Thirty to Sixty
A house gathering, a small mehndi, a boardroom dinner. The honest answer here is frequently that you need very little, and the most common mistake is over-amplifying. Acoustic instruments and an unamplified voice carry perfectly well in a small room, and putting them through a PA usually makes them louder without making them better.
What is worth having: a single small powered speaker for vocals and any backing tracks, so the singer is not fighting the room. What is not worth having: a subwoofer, a full mixing desk, or a stage. If your performer says they do not need a PA in a room this size, believe them.
A Room of a Hundred to Two Hundred and Fifty
The banquet hall bracket. Most sangeets, most company town halls, most award evenings. This is where a real PA becomes necessary and where the shortcuts start to show.
What this size of room genuinely needs: a pair of speakers on stands either side of the performance area, raised above head height so the sound reaches the back rather than being absorbed by the first four rows; a subwoofer for anything involving a kick drum, a dholak or recorded tracks; monitors so the performers can hear themselves, which is the single most common omission and the reason singers go flat; and a person at the mixing desk for the duration, not just during setup.
That last one deserves emphasis. A system set up correctly and then left unattended will be wrong within twenty minutes, because a room full of people sounds different from an empty one. Somebody competent has to be behind the desk while the music is playing.
Four Hundred and Above
Large receptions, auditoriums, college festivals, conference plenaries. At this scale you are no longer choosing a PA — you are hiring a sound company, and the correct move is to let the performer or the venue tell you which one they work with. What changes at this size is that coverage becomes a design problem rather than a shopping problem: the people at the back need to hear the same thing as the people at the front, at a comparable volume, without the front row being deafened.
Two things to insist on. A dedicated engineer, present for the whole event, who is not also doing something else. And a sound check that happens at a scheduled time on the runsheet rather than being squeezed in while guests are arriving.
Outdoors Is a Different Problem
An outdoor event is not an indoor event in the open air. There are no walls to reflect sound back, so everything you send outward is gone. The practical consequences are consistent:
- You need substantially more system than an indoor room with the same headcount, and it is not a small increment.
- Wind moves sound around, and an evening breeze can make the far side of a lawn inaudible.
- Power is rarely where the stage is. Ask who is supplying it, whether it is a generator, and whether the generator is far enough away not to be heard.
- Rain cover for the equipment is somebody's responsibility. Establish whose.
- Many locations have noise limits or curfew hours. Find out before you book an act that finishes at midnight.
The Question That Causes Most Failures
Who is bringing the sound system?
There are only three possible answers — the artist brings their own, the venue has a house system, or a third-party supplier is hired — and an astonishing number of events discover on the day that everyone assumed one of the other two. It is the single most common cause of a delayed start, and it costs nothing to prevent.
Ask it explicitly, in writing, in the booking thread, and follow it with the second half: if the venue has a house system, is it adequate for this act, and has anyone who understands sound actually looked at it? "The venue has a system" is not an answer. Venue systems range from a full professional install to two ceiling speakers meant for announcements.
What to Put in the Booking Thread
- Room dimensions or, failing that, the guest count and whether it is one room or several.
- Indoor or outdoor, and what the surface and cover are.
- Who supplies the PA, monitors, microphones and stands — itemised, not assumed.
- Who is operating it during the performance.
- Available power at the stage position, and whether it is shared with catering or lighting.
- Load-in access: distance from vehicle to stage, stairs, lift, and what time the venue opens.
- The scheduled sound check time, on the same schedule as everything else.
Most professional performers will give you a document that answers half of this without being asked — that document is their rider, and what a rider actually is explains how to read one. The rest belongs on the day-of runsheet, alongside everything else that has a time attached to it.
And if you have not yet chosen the act, the sound requirement should feed that decision rather than follow it. DJ or live band is partly a question about how much sound your venue can actually support.