Alien Ears

Custom in-ear monitors and custom musician ear plugs both start the same way — with an impression of your ear — but they solve different problems. Here’s how to tell which one you actually need.

Custom In-Ear Monitors: For Hearing a Mix

A custom in-ear monitor is an active device: it has drivers inside that reproduce a specific audio mix fed to it from a bodypack or wireless receiver. It’s built for musicians and performers who need to hear a monitor mix clearly on stage.

Custom Ear Plugs: For Protecting Your Hearing

Custom musician ear plugs, by contrast, don’t reproduce any audio — they’re a passive protective device, custom-molded to seal your ear and reduce volume reaching your eardrum, typically through an acoustic filter that lowers volume evenly across frequencies rather than muffling everything unevenly like a generic foam plug. Our filtered musician plugs are built specifically for this — protecting your hearing during rehearsals, practice, or in the audience at loud shows, without distorting what you hear the way cheap foam plugs do.

We Also Make Plugs for Other Situations

Beyond musician-specific filtered plugs, we also build solid custom ear plugs for situations needing maximum noise or water blocking, and custom shooting plugs designed for hearing protection on the range.

Do You Need Both?

Many working musicians end up with both: in-ear monitors for performing, and a set of custom ear plugs for protecting their hearing the rest of the time — rehearsals, loud venues as an audience member, or anywhere else consistent loud exposure adds up over a career.