A Guide to Setting up Custom Monitor Mixes for Large-scale Events

For any large-scale live event—whether a stadium concert, corporate keynote, multi-act festival, or televised awards show—the difference between a great performance and a forgettable one often lies in what the performers hear. While the main PA system is designed to deliver a pristine sonic experience to the audience, it is the monitor mix that gives performers the confidence to deliver their best. A poorly executed monitor mix can lead to timing errors, missed cues, and frustrated artists. A well-crafted custom monitor mix empowers musicians, speakers, and other talent to perform with precision and energy. This guide provides a comprehensive, production-ready approach to setting up custom monitor mixes for events of any size, with a specific focus on the challenges and solutions required for large-scale productions.

Understanding Monitor Mixes: The Foundation of Performance Feedback

A monitor mix is an independently adjustable audio feed sent to one or more stage monitors, in-ear monitors (IEMs), side-fill speakers, or drum fills. Unlike the front-of-house (FOH) mix—optimized for the audience—the monitor mix is a personal blend of instruments and vocals tailored to each performer’s needs. The primary goals of a monitor mix are to provide pitch reference, tempo lock, and ensemble awareness while minimizing stage volume and feedback risk. For large events, the monitor system often becomes a complex network of multiple mixes, each serving a specific performer or group on stage.

Types of Monitor Systems

Understanding the two main types of monitor systems is critical before diving into setup and configuration.

  • Wedge Monitors: Traditional floor wedges project sound back at the performer. They are simple to deploy but can cause excessive stage volume and feedback issues, especially in larger arrays with high SPL requirements. Modern wedges often use coaxial drivers for better coherence and a more predictable coverage pattern. Wedges remain common in club gigs and smaller festivals, and are still preferred by some rock and country artists who rely on the physical feel of the sound.
  • In-Ear Monitors (IEMs): Personal earphones deliver a direct audio feed, providing isolation from ambient noise and drastically reducing stage volume. IEMs allow for stereo mixes, lower listening levels, and far more precise control over the blend. They are the preferred choice for high-profile events due to their clarity, feedback rejection, and the ability to walk around the stage without losing the mix. Stereo IEM mixes (using a pair of earphones) give performers a more natural spatial image—for example, placing the kick drum slightly left and the snare slightly right while keeping the vocal centered.

Many large-scale productions use a hybrid approach: IEMs for the core band members (drummer, guitarists, keyboardist, lead vocalist) and wedges or side fills for guest musicians, DJs, or spoken-word presenters who may not travel with their own ears. Stage wedges can also serve as backup if an IEM transmitter fails.

Key Components of a Large-Scale Monitor System

Before you can set up custom mixes, a solid technical foundation is required. The following components are essential for any monitor rig handling dozens of input channels and multiple independent mixes.

Digital Mixing Console

A digital mixer is the heart of the modern monitor world. Look for consoles with at least 16 auxiliary buses to allow for numerous independent mono or stereo mixes. Popular choices from manufacturers like Yamaha, DiGiCo, Avid, and Allen & Heath offer robust monitoring capabilities including stereo linked mixes, graphic EQ inserts per mix, variable latency compensation, and dual-engine redundancy. For the largest events, a dedicated monitor engineer may use a separate console from FOH, or a network-based system that allows multiple engineers to access the same inputs via a shared stage rack. Consoles with scene-safe features (such as Yamaha’s “Focus” or DiGiCo’s “Safe” function) allow you to lock certain parameters—like graphic EQ bands or mix levels—so that changing acts does not accidentally affect the hardware setup.

Personal Monitor Mixing Systems

To give performers direct control over their own blend, consider implementing a personal monitoring system such as Aviom, Behringer Powerplay, Allen & Heath ME, or Yamaha Mixing Station (via tablet app). These systems let artists adjust their mix via a small hardware unit or a software interface, reducing the burden on the monitor engineer during the show. This is especially useful in festival settings where soundcheck time is limited and musicians need to make on-the-fly adjustments between songs. When deploying personal mixers, ensure the control data is transmitted over a separate network (Dante, AVB, or analog) to avoid overloading the console’s local Ethernet port.

Processing and Equalization

Each monitor mix output should have its own graphic equalizer (GEQ) or parametric EQ to tailor the sound for the specific monitor cabinets on that send and the acoustic characteristics of the stage area. Feedback suppression tools like Smaart measurement software are invaluable for identifying problematic frequencies during soundcheck. A proven workflow: send pink noise through a single monitor wedge, measure its frequency response at the performer’s ear position using a measurement mic, then apply a corrective EQ curve (flattening the response and notching any resonant peaks). Do this for each wedge or group of wedges that share the same model and coverage zone. Additionally, use compressors and limiters on each mix output to protect both the monitor drivers and the performer’s ears from transient peaks. On IEM mixes, a tight limiter (with a soft knee) set to limit at around 85 dB SPL (simulated) is a safety best practice.

Step-by-Step Process for Setting Up Custom Monitor Mixes

1. Pre-Production and Communication

The success of any monitor mix begins long before the first microphone is plugged in. Contact every performer, band leader, tour manager, or artist liaison to gather a detailed input list and personal monitor preferences. Some artists require specific effects (ambient reverb, vocal delay, harmonic doubler) in their mix, while others want a dry, click-like blend with only their voice and a groove foundation. Create a “monitor rider” document that lists the desired level relationships and sends for each artist’s mix (e.g., “Lead vocalist: vocal + 6 dB above rough mix, kick and snare prominent, bass at moderate level, no reverb back to stage”). For multi-act events, this information must be compiled into a shared database accessible to all engineers. Digital tools like Google Sheets or dedicated event management platforms work well for this.

2. System Design and Patch Management

On a large stage, signal flow can become chaotic. Label every input cable with both its channel number and the artist or instrument name. Use digital stageboxes with structured patching—for example, all drum channels on stagebox A, all guitar/bass DI’s on stagebox B, all vocal mics on stagebox C. This allows quick troubleshooting if a cable fails. Map out which auxiliary bus goes to which monitor amplifier, IEM transmitter, or wedge group. A common best practice is to group instrument inputs (e.g., all drum channels summed to a stereo sub-group) and then route that sub-group to multiple monitor mixes with a single fader movement. This reduces the number of tweaks needed when the drummer changes dynamic levels between songs.

3. Initial Level Setting and Gain Staging

Set the trim (gain) for each input to achieve the optimal signal-to-noise ratio. Have the musician play or sing at performance volume while you meter the preamp. Avoid clipping by using the console’s peak indicator; typical targets for peak levels are -12 dBFS or -6 dBFS depending on the console brand. Once gains are set, apply a rough channel equalization to improve clarity and reduce muddiness and harshness. On a vocal mic, high-pass filter at 80-100 Hz, cut a little around 300-400 Hz if muddy, and add a gentle shelf above 5 kHz if needed. This channel EQ is separate from the mix-specific output EQ and applies to the raw input across all sends. Use caution: aggressive channel EQ can inadvertently affect other mixes.

4. Building the First Mixes

Start with the most critical mixes: the lead vocalist and the drummer. These two performers typically have the most demanding needs. For the lead vocal mix: send a strong blend of their own voice (often slightly louder than everything else), a clear drum beat (usually just kick and snare for timing reference), and a foundation of the backing tracks or band arrangement (bass and rhythm guitar). Avoid clutter—if the backing track has strings and pads, keep them low in the mix. For the drummer, provide a mix that includes vocals (for cue entrances), the bass guitar (to lock in with the groove), and a solid reference of their own drum sound (especially kick and snare). Use the solo-in-place function to audition each mix without affecting the actual output. Many engineers solo the entire mix bus into a pair of high-quality headphones to fine-tune balance before sending to the stage.

5. Soundcheck: The Iterative Tuning Phase

Soundcheck is where theory meets reality. Have the entire band play a full song while you adjust each mix in real time. Listen for feedback at different frequencies and apply corrective EQ on the mix output, not the input channel. Use a measurement microphone and software (like Smaart v8) to identify room modes or monitor system resonances. Communication with performers is key: use a talkback microphone to ask specific questions such as “How is your vocal level against the kick?” or “Do you need more hi-hat or guitar presence?” Avoid vague queries. Phrase requests concretely: “I’m going to add a little more of the rhythm guitar into your mix—tell me if that helps with your timing.” During the song, observe each performer’s body language; if they are turning around to look at a wedge, that wedge needs adjustment. If an IEM user is pointing to the transmitter rack, they likely have a connection issue.

6. Finalizing Mixes and Locking the Console

Once all mixes are approved, save a snapshot of the entire console state. Lock the faders for critical channels (using the console’s “safe” or “protect” function) to prevent accidental changes during the show. For IEM mixes, double-check the limiter settings on both the transmitter and the console mix output—set the transmitter output limiter to a safe output level (consult the earphone sensitivity rating) and the console mix limiter to about -6 dBFS. Label all monitor mix outputs physically on the console (with tape and marker) and on any apps used by performers. Then run through the first song one more time to verify everything is stable. Make a backup copy of the show file to a USB drive and cloud storage if possible.

Advanced Techniques for Large Event Monitor Management

Managing Multiple Monitor Zones

On a very large stage (e.g., a festival main stage or a massive ballroom), you may need several monitor zones: front fills (for the downstage area), side fills (for musicians on the wings), drum fill (a large subwoofer-laden wedge behind the drum riser), and maybe an additional wedge for a guest vocalist on the opposite side. Each zone must be EQ’d and delayed appropriately to ensure time alignment between zones and relative to the FOH system. A single monitor mix (e.g., “drummer’s mix”) can be split into different physical outputs with different EQ and delay settings using a matrix output or by creating multiple sends from the same mix to different amplifiers. When using a matrix, insert a delay on the front fill send so its sound arrives at the same time as the artist’s nearfield IEM or wedge. Use a laser distance measurer or smart tape to determine the offset in meters, then convert to milliseconds (roughly 3 ms per meter).

Feedback Suppression Strategies

Feedback is the enemy of monitor mixes. In addition to careful output EQ, consider these tactics:

  • Use notch filters on each mix output to surgically cut the exact problematic frequency. Smaart can help identify the fundamental feedback frequency—typically between 200 Hz and 4 kHz.
  • Engage high-pass filters on all vocal microphones to eliminate low-end rumble from foot stomps or handling noise. For a standard dynamic vocal mic (SM58), an 80 Hz high-pass is safe; for condenser mics, 100-120 Hz.
  • Place microphones as far from stage monitors as possible, and aim monitors toward the null of the microphone’s polar pattern. For a cardioid mic, the rear lobe is the null—point the mic’s rear toward the wedge.
  • With IEM systems, encourage performers to keep their mix as low as possible; a loud IEM mix increases the chance that the earphone sound leaks into nearby microphones (e.g., the vocal mic picks up the IEM bleed). Open-back earphones exacerbate this, so custom-molded closed-back IEMs are strongly recommended.
  • If stage wedges are used, reduce the number of open microphones on stage. Mute unused channels or use a snare gate with a fast release.

Click Tracks and Time Code

For shows with complex sequences—synchronized video, lighting cues, or backing tracks—a click track (metronome) and time code (MIDI Time Code or SMPTE) are often part of the monitor mix. Typically, the click is sent only to the drummer and perhaps the musical director. Use a dedicated stereo mix for the click and time code, or embed it into the drummer’s mix as a separate input (panned center). Ensure the click mix has its own limiter to maintain consistent level even if the tempo track has dynamic automation. Many modern playback systems (like Ableton Live or QLab) allow the click to be an independent output that can be routed to the monitor console via Dante or MADI. Test that the click remains coherent with the band’s live tempo during soundcheck—some drummers prefer the click to be audible only in one earphone to avoid conflict with the live groove.

Tools and Technology for Efficient Monitor Mixing

Leverage modern tools to streamline your workflow and provide better results:

  • Networked Audio: Protocols like Dante, AVB, or MADI allow multiple consoles and stageboxes to share inputs and outputs over a single cable. This is essential for large events where the FOH console and monitor console are separate, or where a broadcast truck also taps into the same microphones. Dante Controller software makes patching straightforward.
  • Software Mixers and Virtual Soundcheck: Tools like Waves eMotion LV1 or Allen & Heath dLive offer virtual soundcheck capability—record the band during soundcheck (using a multitrack recorder tied to the console) and play back the audio while tweaking mixes. This allows you to work without the band present, refining each mix between acts. It is especially useful for festivals when the next band is late or soundcheck time is tight.
  • Smaart v8: Real-time dual FFT analysis for accurate EQ and alignment of monitor systems. Available at Rational Acoustics. Use the “Spectrograph” view to see sustained feedback frequencies.
  • Shure Wireless Workbench: For managing IEM wireless frequencies and coordinating with wireless microphones to avoid intermodulation distortion in crowded RF environments. See Shure Wireless Workbench.
  • RF Coordination Software: Tools like IAS (Intermodulation Analysis Software) or SoundBase’s Scan and Coordinate module can be used in conjunction with a spectrum analyzer to find clean frequency slots for IEM transmitters.

Best Practices for Large-Scale Events

Designate a Dedicated Monitor Engineer

For any event with more than 24 input channels or eight monitor mixes, a separate monitor engineer is non-negotiable. Trying to manage both FOH and monitors from one console leads to compromised mixes and stressed engineers. If budget constraints exist, use a side-stage console shared with another function, but ensure each engineer has their own dedicated control surface.

Develop a Communication Protocol

Use a clear, concise set of phrases when talking to performers. “More vocal, less guitar” is better than “turn that up a bit.” Establish a hand signal system for on-stage adjustments when the stage is too loud for talkback (e.g., thumbs up = “good,” index finger raised = “more of my voice,” hand flat lowered = “reduce volume”). Make sure the stage manager understands these signals to relay messages to the monitor engineer if the talkback microphone is muted.

Plan for Quick Changeovers

In festival or multi-act scenarios, time is limited. Save a separate scene snapshot for each act. Use a consistent patch order and labeling scheme across the entire festival so that loading a new scene automatically reassigns inputs to the correct channels. Pre-program graphic EQ curves for different monitor brands (e.g., L-Acoustics, JBL, d&b, Meyer) if the rental company switches equipment between acts. Have a “reset” scene that clears all custom mixes and sets output EQs to flat, then load the act-specific scene from that reset state to avoid stray data.

Monitor Engineer Cue Mix

Always maintain a “cue” mix that allows you to hear exactly what a performer is hearing. Use a dedicated solo bus that follows the mix you are actively adjusting. Many digital consoles allow you to assign a solo button to the output bus. Wear a pair of high-quality closed-back headphones (like Sony MDR-7506 or Beyerdynamic DT 770) during soundcheck and the show. This ensures you can diagnose issues without leaving your console or asking the performer to describe what they hear.

Maintain Safety and Hearing Health

Set hard limiters on all IEM mixes at safe levels. A common target is to limit the mix output to no more than 85-90 dB SPL at the earphone driver. If you are using generic earbuds instead of custom-molded IEM shells, the limit may need to be lower because the seal is less effective. Encourage performers to use custom-molded IEM shells for better isolation and comfort—this reduces the need for higher volumes. Provide high-fidelity earplugs (like Etymotic ER-20 or custom musicians’ plugs) for any performers using wedges who complain of excessive volume. The responsibility for hearing protection ultimately lies with the production team; have spare earplugs at monitor world.

Record and Review

For events that last multiple days, consider recording the monitor console’s outputs to a multitrack recorder or DAW. At the end of each night, review the recorded mixes while noting any moments of feedback, imbalance, or performer dissatisfaction. Adjust your approach for the next day. This is especially valuable for broadcast events where the monitor mix also serves as a feed for the audio van—ensuring consistency night after night.

Conclusion

Setting up custom monitor mixes for large-scale events is a blend of technical precision, interpersonal communication, and creative problem-solving. By understanding the core components of a monitor system, following a structured setup process, and leveraging modern tools—from networked audio to measurement software—you can deliver a monitoring experience that makes every performer feel confident and connected. Remember that a great monitor mix is not static; it evolves with the show as the band’s dynamics change or as the acoustics shift with a fuller audience. Stay attentive, keep lines of communication open, and never underestimate the value of a thorough soundcheck. With these practices in place, your next large-scale event will not only sound great to the audience but will also feel effortlessly powerful to the talent on stage.

For further reading on advanced monitor techniques, check out Sound On Sound’s monitor mixing guide and ProSoundWeb’s keys to monitor mixing. Both resources offer deep dives into professional approaches. For a practical look at networked audio and console workflows, the Digital Mixing Console User Manuals from Yamaha and DiGiCo provide step-by-step patching instructions—find them at Yamaha Pro Audio.