Mixing consoles
Rack Mixer vs Console for a Church
Quick answer
A rack mixer wins when booth space, sight lines or security are the constraint, because a 2U box in a locked rack takes about 3.5 inches of vertical space and no floor at all. A console wins when a volunteer needs the mix under their hands. Decide on the room, not on the specification.
Allen & Heath CQ-20B Digital Mixer with WiFi and Bluetooth Connectivity
$999.99 Specs and sizingSixteen preamps and 20 channels in two rack units with no surface at all, driven from the room over Wi-Fi or a wired network.
Best for: Installed systems where nobody should be able to reach the knobs
Check price on Amazon
Allen & Heath CQ-18T Digital Mixer with 7" Touchscreen WiFi and Bluetooth Connectivity
$1,199.99 Specs and sizingThe same family with a seven inch touchscreen and physical controls on the unit, so the mixer is operable where it stands.
Best for: A 150 to 400 seat room that wants digital recall without depending on a tablet
Check price on AmazonDecide this on architecture before you decide it on audio, because the two products above run the same engine and the same preamps. The question is where the mixer lives, who can reach it, and how long the cable runs are. A rack mixer answers to a closet; a console answers to a booth.
Churches get this wrong in a specific way: they buy a full console, then discover the only place it fits is under a balcony where the sound is unrepresentative, and the operator spends ten years mixing a room they cannot hear. If that describes your building, a rack mixer operated from the congregation is not a compromise, it is the better system. Plan the rack itself on the rack space calculator.
Two mixers from one family, two form factors
| Model | Price | Input channels | Mic preamps | Mix buses | Digital | Scene recall | Rack space |
|---|---|---|---|---|---|---|---|
| Allen & Heath CQ-20B Digital Mixer with WiFi and Bluetooth Connectivity | $999.99 | 20 | 16 | 6 | Yes | Yes | 2U |
| Allen & Heath CQ-18T Digital Mixer with 7" Touchscreen WiFi and Bluetooth Connectivity | $1,199.99 | 16 | 16 | 6 | Yes | Yes | 3U |
What each form factor costs you
The trade is always the same four things: space, security, sight line and failure mode.
A 2U rack mixer occupies about 3.5 inches of rack height against roughly 10 square feet of booth floor for a full console and its desk.
| Constraint | Rack mixer | Console |
|---|---|---|
| Space used | 2U to 4U in an existing rack | A desk, a chair and floor space |
| Who can adjust it | Only someone with the app or the key | Anyone who walks past |
| Where the operator stands | Anywhere, including the congregation | Wherever the desk is |
| Cable run to the platform | Rack can sit near the stage | Cables must reach the booth |
| If the network fails | No control on surfaceless models | Full control retained |
| Visual impact in the sanctuary | None | Visible from most seats |
| Cost of the same capability | Lower | Higher |
Security is a real and underrated factor. In a building used by outside groups, a mixer nobody can reach is a mixer that still works on Sunday.
Choose a rack mixer if the building fights you
Historic sanctuaries, rooms with a protected interior, buildings where the committee has said no visible equipment, and shared halls used by other groups during the week all point the same direction. Put the mixer in a locked rack, run one cable, and operate from a tablet. Nothing is visible, nothing gets adjusted, and the rack can sit near the platform so the expensive multi-core run gets much shorter.
The second case is the bad mix position. If your only booth is under a balcony or in a side room behind glass, the operator is mixing a version of the room the congregation never hears. A rack mixer with tablet control lets that person stand at row eight during soundcheck and set the system where people actually sit. That single change improves more church systems than any piece of outboard gear.
Build the failure plan in: run a wired Ethernet drop to the rack, use a dedicated access point rather than the guest network, and keep a charged second tablet. Read the rack planning guide for layout and ventilation.
Choose a console if a volunteer runs it live
A physical surface is faster than a screen, and the gap widens under pressure. When the pastor calls someone up unexpectedly and a channel needs unmuting in three seconds, a fader and a lit mute button beat finding a layer on a tablet every time. For a church that mixes live rather than recalling a scene and leaving it, that is decisive.
A surface also degrades gracefully. No network, no app, no battery, no problem. The mixer runs. On a surfaceless rack mixer the same failure is total, and every church that runs one has a story about it. Our tablet versus surface page goes deeper on that specific risk.
The cost is real estate and sight lines. A console needs a booth with a clear view of the platform, a work surface, power and light. If your building cannot give it that, the console will underperform the rack mixer no matter what the specification says.
Sources
- Allen and Heath published CQ series specifications
- Manufacturer rack mounting and ventilation guidance
Frequently asked questions
How much rack space does a church mixer need?
Between one and four units for the mixer itself, plus a power conditioner, a stage box if it lives in the same rack, and one vented unit above anything that runs warm. Leave at least two units genuinely empty for the next purchase. Our rack space calculator adds these allowances automatically.
Can a rack mixer be mounted near the stage?
Yes, and that is often the point. Putting the rack close to the platform shortens every microphone cable to a few feet and replaces the long run with a single network cable back to the booth. In a building where running a copper snake would mean cutting into a floor, this can save thousands.
Is a tablet secure enough to control a mixer?
Put the mixer on its own access point with a password, not on the guest network, and the risk is small. The real security benefit runs the other way: a mixer in a locked rack cannot be adjusted by a visiting band, which in a shared building is the failure that actually happens week to week.
Do rack mixers have fewer features?
Not usually. Within a family the rack version normally runs the identical engine with the same channels, buses and processing, and differs only in onboard preamp count and the absence of a surface. The X32 and X32 Rack are the clearest example, and they share a scene file exactly.
What about heat in a closed rack?
It matters more than people expect, and it kills amplifiers before it kills mixers. Leave a vented unit above every amplifier, never pack a rack solid, and if the rack lives in a closet make sure the closet has airflow. A rack that is warm to the touch on a Sunday is shortening the life of everything in 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.