Portable and multi-campus
Church Plant Sound System
Quick answer
A church plant serving 100 people needs about 210 watts per loudspeaker across two boxes, throwing roughly 30 feet to the back row. That room needs around 10 inputs and two wireless channels, which is a far smaller system than most plants expect to buy.
Church plants buy the wrong sound system in a predictable way: they buy for the church they hope to be in five years rather than the one meeting next Sunday, and the money that should have gone into two good loudspeakers goes into thirty-two channels nobody uses. A plant of 100 people needs about 210 watts per box across a pair and roughly ten inputs. That is the honest requirement, and it is small.
The second mistake is buying equipment before knowing where the church will meet, because a portable system for a school gymnasium and an installed system for a leased storefront are genuinely different purchases. This page sets out what to buy first, what to defer, and what to skip entirely.
On this page
What a 100 person plant actually needs
A room seating 100 is roughly 23 feet wide by 35 feet deep with a throw of about 30 feet to the back row. At a blended service target of 88 dBA with 12 dB of peak headroom, that is about 210 watts per loudspeaker across a pair, which almost any competent powered loudspeaker delivers comfortably. The input list is around ten channels: a preaching microphone, a lectern or spare handheld, two or three vocals, acoustic guitar, a keyboard counted as two, playback counted as two, and a spare.
Ten inputs with a 25 percent growth margin lands on a 16 channel console. Two wireless channels covers preaching and one roaming handheld. Two monitor mixes covers the worship leader and everyone else. That is the whole system, and a plant that buys exactly that and buys it well will sound better than a plant that buys twice as much of something cheaper.
Run your own numbers rather than taking these, because a contemporary band in the same room needs roughly five times the amplifier power of a blended service. The amplifier power calculator and the mixer channel calculator will give you figures specific to your room and your lineup.
Three tiers of plant system
These are realistic starting points. The middle tier is where most plants should aim, and the top tier is what a plant grows into rather than starts with.
A 100 person plant needs about 210 watts per loudspeaker and roughly ten inputs, which is a 16 channel console and two wireless channels.
| Congregation | Watts per box | Boxes | Inputs | Console | Wireless | Monitor mixes |
|---|---|---|---|---|---|---|
| Up to 100 | 210 | 2 | 10 | 16 channel | 2 | 2 |
| 100 to 150 | 300 | 2 | 16 | 24 channel | 4 | 4 |
| 150 to 250 | 470 | 2 | 16 | 24 channel | 4 | 4 |
Figures assume a blended service at 88 dBA with 12 dB of peak headroom on a 96 dB sensitivity loudspeaker, and a room 1.5 times as long as it is wide. A contemporary worship band at 95 dBA needs roughly five times the amplifier power in the same room.
The buying order for a plant
- Decide where you are meeting before buying anything. A school gymnasium needs a portable system in cases; a leased unit you occupy all week can have an installed one. The difference changes the loudspeakers, the console format and whether you buy road cases at all. Buying equipment before the venue is settled wastes money reliably.
- Buy two good loudspeakers and the stands to hold them. This is the largest single decision and the one that sets the ceiling on everything else. Choose pattern control over raw wattage, choose a weight your volunteers can lift onto a stand, and buy stands rated for the cabinet rather than the cheapest pair available.
- Buy the console the input list calls for, and no more. Ten inputs with growth is a 16 channel console. A rack mixer controlled by a tablet suits a portable plant particularly well because it has no surface to damage and lets the operator mix from the room. Resist buying channel count for a future that has not arrived.
- Buy the preaching microphone properly. This is the channel a congregation judges everything by. A headworn capsule returns 12 to 18 dB of gain before feedback over a lavalier, which matters enormously in a hard reverberant rented room. Do not economise here to afford a second wireless handheld.
- Buy wired microphones, stands and direct boxes. Cheap, durable and the category most often forgotten. A handful of dynamic vocal microphones, a direct box for the acoustic guitar and another for playback, and enough stands. This is a small share of the budget and it is what makes the platform actually work.
- Buy cable, and then buy more cable. Microphone cable, speaker cable, power, tape and cable ramps, plus spares of each. Portable systems destroy cable, and an intermittent cable under Sunday morning time pressure is the worst fault to diagnose. Buy heavier jacketed cable than an installed system would need.
- Add monitoring only when stage volume becomes a problem. A plant with an acoustic-led band and two vocals may genuinely not need monitors at first. When it does, a couple of aux fed wedges or a pair of cheap wired in-ear amplifiers will answer the question of whether the team will accept in-ears before a wireless system is bought.
- Add video last, and only if you will staff it. Projection and livestream both need volunteers who show up every week, and an unstaffed camera produces worse output than no camera. Establish that the people exist before the equipment does, and start with one camera and good audio rather than three cameras and camera microphones.
What to skip, and what to buy used
Skip a subwoofer until the band genuinely needs one, which for a speech-led or acoustic plant may be never. Skip outboard processing entirely, because any digital console already includes a gate, compressor and equaliser on every channel. Skip a feedback eliminator, which buys 3 to 6 dB and is no substitute for a headworn microphone that buys 12 to 18. And skip channel count you cannot name a source for.
Buy used where the risk is low: stands, racks, cable to be tested, and passive loudspeakers you can hear before paying. That stretches a plant budget substantially. Be careful with anything containing a fan, an amplifier module or a lamp, where wear is invisible at the point of sale.
The one category to treat with real caution is wireless. Equipment tuned to 617 to 652 MHz or 663 to 698 MHz is illegal to operate in the United States, cannot be retuned and is worthless at any price, and a great deal of it is still circulating secondhand. A plant is better off with one legal wireless channel bought new than three uncertain ones. The full checklist is at buying used church sound equipment.
The real constraint is volunteers, not money
Church plants budget for equipment and forget to budget for people, which is why so many plant systems end up more complicated than the team can operate. A system is only as good as the person running it on a Sunday when the usual operator is away, and in a plant that person is often somebody who agreed to help ten minutes earlier.
Design for that. Fewer channels that are always patched the same way beat more channels that move around. A saved default scene that anyone can recall to reach a known working state prevents most Sunday failures. A printed input list taped inside the rack means a new helper can plug in correctly without a briefing. None of this costs money and all of it determines whether the equipment you bought actually produces good sound.
The corollary is to buy equipment that is hard to set up badly. A wireless system with no transmitter gain to set cannot be handed to a guest speaker wrongly. A console with scene recall cannot lose six weeks of tuning to one curious volunteer. Weigh that as seriously as any specification, because in a plant the operator is the weakest link far more often than the equipment is. Training is covered at how to train church sound volunteers.
Planning for the church you might become
There is one place where buying ahead is correct, and it is not equipment. If you are fitting out a space you will occupy for years, do the cable and conduit work for the finished system now, even if the equipment arrives over several years. Pulling cable twice costs far more than pulling it once, and a conduit path installed during a fit-out is nearly impossible to add later.
Everything else should be bought for the current congregation. A plant that doubles will sell or redeploy a 16 channel console without much loss, and will have had two years of a system sized correctly rather than two years of paying interest on capacity it did not use. The staged growth path is at growing portable system, and the budget framework at building a church AV budget.
Sources
- Amplifier power from the standard SPL, sensitivity, distance and headroom relationship
- Console sizing from an input count with a 25 percent growth margin, rounded to available channel counts
- FCC rules on wireless microphone operation and prohibited bands after the 600 MHz incentive auction
Frequently asked questions
How much should a church plant spend on sound?
A capable portable system for a plant of 100 people can be assembled meaningfully under $10,000, with the largest share in two good loudspeakers and their stands. Spending less is possible by buying used stands, racks and cable. Spending much more usually means buying channel count or wireless channels the congregation does not yet need.
What should a church plant buy first?
Two good loudspeakers and the stands to hold them, because they set the ceiling on everything else and no other purchase compensates for them. Then the console sized to the input list, then the preaching microphone bought properly. Wired microphones, stands, direct boxes and cable follow, and monitoring and video come last.
Does a church plant need a digital mixer?
It helps considerably, mainly because scene recall lets a rotating volunteer team start from settings that worked rather than from whatever was left behind. A rack mixer controlled by a tablet suits portable use particularly well. The requirement is consistent patching each week, otherwise saved scenes cannot be relied on.
How many wireless channels does a plant need?
Two is usually right: one for preaching and one roaming handheld for announcements, testimony or kids talks. Wireless is the most expensive category per channel and carries a recurring battery cost and a coordination burden. Buy two good channels rather than four uncertain ones, and verify the frequency band is legal.
Should a plant buy a subwoofer?
Not initially, unless the band has a kick drum and bass guitar from the start and the service style is contemporary. For speech, piano and an acoustic-led band, a pair of full range loudspeakers is sufficient and the money is better spent on the preaching microphone or on better main cabinets. Add it when the band arrives.
When should a plant move from portable to installed?
When weekly setup time stops being sustainable for the volunteer team, or when you occupy a space full time. Setup burden erodes teams faster than equipment failures do. If you do move into a permanent space, do the cable and conduit work for the finished system immediately even if equipment arrives later.
Researched, not professional advice. This page is compiled from published manufacturer specifications, operator manuals, FCC rules, published standards and owner-review consensus, not hands-on testing. Sound system design, rigging loudspeakers overhead, and any electrical work are jobs for a qualified professional: have flown loudspeakers and their attachment points signed off by a structural engineer or a certified rigger, and have all wiring done by a licensed electrician to your local code. Wireless microphone rules change, so confirm the current FCC position before buying. As an Amazon Associate we earn from qualifying purchases.