In-Ear Monitor (IEM)
Custom earpieces that allow performers to hear themselves and their band during live shows.
Definition
In-ear monitors are personalized audio systems worn by performers during live shows. Each musician receives a custom mix in their ears, allowing them to hear exactly what they need—their own vocals, specific instruments, or click tracks—regardless of what the audience hears.
IEMs have largely replaced floor wedge monitors for professional touring, offering consistent sound, hearing protection, and freedom of movement.
Why It Matters
Good monitoring is essential for confident performances. Singers need to hear themselves in tune; drummers need click tracks for complex productions.
Investing in quality IEM systems improves performance quality and protects musicians' hearing over long careers.
Examples in Practice
A vocalist's IEM mix includes extra reverb on their voice and prominent piano for pitch reference, while the drummer hears mostly click and bass.
A touring artist invests $3,000 in custom-molded IEMs that fit perfectly and isolate external noise.
A monitor engineer spends soundcheck dialing in seven different IEM mixes for a band with demanding individual needs.