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Mixer Channel Count Calculator

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Quick answer

A typical church input list of preaching, lectern, worship vocals, a band, drums and a choir comes to about 22 channels. Adding the standard 25 percent growth margin puts that at 28, so the console to buy is a 32 channel one.

Two rules decide console size and both are routinely missed. Stereo sources take two channels, so a stereo keyboard, a drum overhead pair and a playback laptop quietly consume six channels between them. And a console with no spare channels is a console you replace in two years, because church input lists only ever grow.

Build your list below. The calculator adds a growth margin and rounds to a size that is actually sold, and the grid underneath shows the consoles that fit.

Mixer channel count calculator

Preaching, lectern, roaming handheld.

One per singer. Never share a channel.

Acoustic guitar, electric guitar, bass.

Keyboard, playback, computer audio. Each takes two channels.

Livestream, overflow, nursery, hearing assist, recording.

Console size to buy

32 channels

Consoles that fit your input list

Top matches update when you change your numbers.

Behringer X AIR XR18 18-Channel, 12-Bus Digital Mixer for iPad/Android Tablets with 16 Programmable Midas Preamps, Integrated Wifi Module and Multi-Channel USB Audio Interface
Behringer

Behringer X AIR XR18 18-Channel, 12-Bus Digital Mixer for iPad/Android Tablets with 16 Programmable Midas Preamps, Integrated Wifi Module and Multi-Channel USB Audio Interface

$509.00 Specs and sizing

Sixteen programmable Midas preamps and six aux sends for monitors, controlled entirely from a tablet, with 18 track USB recording built in. No console surface at all, which is the trade.

Best for: A church plant or a 100 to 250 seat room where the mixer can stand in the congregation

Check price on Amazon

What does a typical church input list look like?

A mid-size church with a band, drums and a choir. Count yours the same way: every position on its own channel, and stereo sources counted twice.

A typical church input list of preaching, lectern, vocals, a band, a full drum kit and a choir uses about 24 console channels once stereo sources are counted properly.

A typical church input list with channel counts
SourceQuantityMono or stereoChannels usedNote
Preaching microphone1Mono1Headworn or lapel wireless
Lectern microphone1Mono1Gooseneck, often left up permanently
Roaming handheld1Mono1Announcements, testimony, guests
Lead vocal1Mono1Worship leader
Backing vocals2Mono2One channel each, never shared
Acoustic guitar1Mono1Direct box
Electric guitar1Mono1Microphone on the cabinet, or direct
Bass guitar1Mono1Direct box
Keyboard1Stereo2Stereo, so two channels
Kick drum1Mono1
Snare drum1Mono1
Toms2Mono2Rack and floor
Drum overheads1Stereo2Stereo pair, two channels
Choir microphones3Mono3Hanging condensers
Playback or tracks1Stereo2Stereo from a laptop
Video or computer audio1Stereo2Stereo, for sermon clips

Backing vocals never share a channel. Two singers on one microphone means neither can be adjusted without affecting the other, which is the single most common reason a church mix cannot be fixed.

How many console channels by church size?

Typical input counts by seat count and service style, with the growth margin applied and rounded to a size that is sold.

A 250 seat church typically runs about 16 inputs today, which means buying a 24 channel console so there is room to grow, plus four monitor mixes.

Console channels and monitor mixes by church size
Church sizeInputs todayWith 25% growthConsole to buyMonitor mixes
75 seats1013162
150 seats1620244
250 seats1620244
400 seats2430326
600 seats2430326
1,000 seats3240408

Monitor mixes are counted by ear rather than by musician: two singers who want the same thing can share a mix, and a drummer never can.

Why buy more channels than you need today?

Because church input lists only grow, and a console is the piece of equipment hardest to replace incrementally. Adding a channel to a 32 channel console is free. Adding a channel to a full 16 channel console means a new console, a new stage box, re-patching everything and retraining the volunteer team.

Twenty-five percent is the working margin. Less than that and a single new instrument or a second campus feed fills it. Much more than that and you are paying for faders nobody will touch, which is real money that should have gone to the loudspeakers.

The other thing to count is aux sends, not just inputs. Every monitor mix needs one, and so does every feed leaving the room: the livestream, the overflow room, the nursery, the hearing loop and the recording. A console with 32 inputs and four aux sends will run out of outputs long before it runs out of inputs, which is why the bus count on a data sheet matters as much as the channel count.

Which console fits your input list?

The grid below filters to consoles with enough channels for your answer. Broadly: under 12 channels an analog board such as the Yamaha MG12XU 12-Input 4-Bus Mixer with Effects is simpler and has nothing to boot; from 12 to 18 channels the Behringer X AIR XR18 18-Channel, 12-Bus Digital Mixer for iPad/Android Tablets with 16 Programmable Midas Preamps, Integrated Wifi Module and Multi-Channel USB Audio Interface or Allen & Heath CQ-18T Digital Mixer with 7" Touchscreen WiFi and Bluetooth Connectivity bring scene recall, which matters enormously on a rotating volunteer team; and from 24 channels upward the Behringer 32 40-Input 25-Bus Digital Mixing Console, Black (X32) and Allen & Heath SQ-5 Digital Mixer, 48 Input Channels, 7" Capacitive Touchscreen, Automatic Mic Mixing, 32×32 USB Audio Interface are where most churches land.

One consideration that is not on any data sheet: whether the console has a screen on the box itself. A tablet-only mixer is cheaper and smaller, and it also means the service does not start when somebody forgets the tablet or the app will not update. For a volunteer team that is a real operational risk, and it is why the Allen & Heath CQ-18T Digital Mixer with 7" Touchscreen WiFi and Bluetooth Connectivity and the fader-equipped Behringer X32 Producer Digital Mixer are worth their premium over a bare rack unit.

Frequently asked questions

How many channels does a church mixer need?

Count every source separately, count stereo sources twice, then add about 25 percent for growth and round up to a size that is sold. A typical church with a band, drums and a choir uses about 22 channels, which means buying a 32 channel console. A speech-led church with a piano may only need 8 to 12.

Do stereo sources really need two channels?

Yes. A stereo keyboard, a stereo drum overhead pair and a playback laptop each occupy two console channels, and between them that is six channels a church routinely forgets to count. Some consoles let you link two channels into a stereo pair controlled by one fader, which is convenient but does not reduce the number of inputs consumed.

Should two singers share a microphone channel?

No, and this is one of the most common causes of a mix that cannot be fixed. Two voices on one channel share the same fader, the same EQ and the same compression, so making one audible makes the other too loud. Every vocal position gets its own channel and its own microphone, even if that means a smaller band.

How many aux sends does a church need?

One per monitor mix plus one per feed leaving the room. A church with four monitor mixes, a livestream feed, an overflow room and a hearing assist system needs seven, which is more than many small consoles provide. Check the bus and aux count on the data sheet as carefully as the input count, because that is where small consoles actually run out.

Is it cheaper to add a stage box than to replace the console?

Usually, if the console has a digital snake port. A sixteen channel stage box adds sixteen remote-controlled preamps over one network cable for a fraction of a new console, and it puts those preamps on the platform where the microphones are rather than at the far end of a long cable run. It only helps if the console itself has the channel capacity to receive them.

Do we need a digital console or will analog do?

Below about twelve channels, and with a fixed input list that never changes, analog is simpler and has nothing to boot before a service. Above that, scene recall is worth a great deal on a rotating volunteer team, because the system starts from a known good state every week rather than from wherever the last person left it.

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.