A monitor mix is a customized audio feed sent to the performers, not the audience; it keeps a band in time and in tune.
Without a dedicated monitor feed, a singer hearing mostly drums drifts in pitch, and a guitarist who can’t hear the kick slides off the beat. Building it correctly takes console know-how, and the payoff shows up immediately on stage.
What Is a Monitor Mix?
A monitor mix is a separate blend of onstage instruments and voices sent to speakers or earbuds aimed at the performers. Per Shure’s introduction to in-ear monitoring, in-ear monitoring delivers the mix to earphones with balance and volume adjusted per person.
The house mix serves the room; the monitor mix serves the players. A good front-of-house sound can still leave a drummer lost. Performers need their own mix because it improves timing, pitch, and confidence.
What Equipment Does a Monitor System Use?
Two approaches: wedge monitors (stage speakers aimed at performers) or in-ear monitors (worn individually). A complete in-ear system has three pieces — a rack-mounted transmitter, a body-pack receiver, and the earphones.
In-ears produce no sound for onstage mics to pick up, cutting feedback risk dramatically. Wedges can feed back into any open mic, so placement and EQ matter on a loud stage, and well-used monitors keep stage volume lower.
How Do You Build One?
Monitor mixes are built with aux sends, usually pre-fader so house-mix changes don’t disturb the performer. That routing principle is the single most important setting; post-fader sends ripple every house adjustment into the performers’ ears.
For wedges: stage mic/DI into console, pre-fade aux send, through a graphic EQ to tame feedback-prone frequencies, out to monitor amp and wedge. On the console, turn monitor levels down first, connect the monitor output to the stage speaker, set the master send to unity, then raise channel sends one at a time. Yamaha’s guidance stresses careful wedge placement, including positioning a wedge 180 degrees off-axis to the nearest vocal mic.
For in-ears: transmitter to body-pack receiver to earphones. For a console that handles these aux sends cleanly, see this roundup of the best mixer options for in-ear monitoring.
| Monitor Type | How It Works | Best For |
|---|---|---|
| Wedge monitor | Stage speaker aimed at performer | Small stages, quick setups |
| In-ear monitor | Transmitter to body pack to earphones | Loud stages, precise pitch and timing |
| Single transmitter (IEM) | One identical mix to many receivers | Bands who want the same blend |
| Multiple transmitters (IEM) | Separate mixes per performer | Musicians with different needs |
| Pre-fader aux send | Monitor feed unaffected by house faders | Any stable monitor mix |
| Post-fader aux send | Monitor feed changes with house mix | Rarely used for monitors |
| Graphic EQ on monitor bus | Notches out feedback-prone frequencies | Wedge systems on loud stages |
Where Do Monitor Mixes Go Wrong?
The most common error is treating the house mix as the monitor mix — copying front-of-house ignores that each performer needs different things louder. Other mistakes: leaving sends post-fader so the mix wanders, overloading the stage with volume instead of letting monitors work, and feeding everyone the same blend.
That last point has a hard limit: per Shure, a receiver can receive audio from only one transmitter, but a single transmitter can serve multiple receivers — as long as everyone wants the same mix. Distinct blends require separate transmitters or systems.
Common Questions
Can two performers share one monitor mix?
Yes, only if they want the same blend. One transmitter feeds multiple body-pack receivers, so musicians get identical audio. Once one wants more of their own voice and less drums, you need separate transmitters.
Why set monitor sends pre-fader instead of post-fader?
Pre-fader sends pull signal before the channel fader, so moving the house fader doesn’t change what the performer hears. Post-fader sends follow every house change, shifting the musician’s blend mid-song. Pre-fader keeps things stable.
Do in-ear monitors really reduce feedback?
Yes. In-ears produce no sound for onstage mics to pick up, so the wedge feedback loop largely disappears. Wedges can feed back into any open mic, which is why placement and EQ on the monitor bus matter so much on a loud stage.
Sources
- Shure. “An Introduction to In-Ear Monitoring” Supports the in-ear system signal path, personal mixing, and receiver-to-transmitter limits.
- Yamaha Music. “Optimizing Your Monitor Mix and Avoiding Feedback” Supports wedge placement and feedback-control technique.
- Harman Pro. “FOH Monitor Mixing Basics, Part 1: Configuring the System” Supports aux-send routing and console configuration for monitor mixes.