The Story of Andromeda

Campfire Audio's Iconic Green In-Ear Monitor

When people think of Campfire Audio, they often picture a small, faceted, bright-green earphone. That’s Andromeda, the in-ear monitor that took us from making simple one- and two-driver IEMs to building a true modern classic with five balanced armatures and a sound that captured the attention of listeners all over the world. 

From its debut in 2016 to today’s Andromeda Emerald Sea and Andromeda 10, this family of IEMs has become a reference point for how we think about tuning, design, and long-term evolution. This page is a home for that story.

Before Campfire Audio existed, our team in Portland was already obsessed with signal chains, building premium cables and amplifiers under the ALO Audio name. Our first in-ears were deliberately simple: single- and dual-driver models that taught us how to package our ideas about tone and build into something tiny and durable.

Andromeda was the leap forward. In 2016 we combined five balanced armature drivers (two for low frequencies, one for the mids, and two for the highs) with carefully tuned acoustic chambers to create an earphone that sounded spacious, balanced, and alive.

Reviewers quickly described Andromeda as a “staple of the IEM world” and a defining design for both Campfire and the wider community. Its soundstage, natural midrange, and easygoing but detailed treble made it a go-to recommendation for listeners who wanted an IEM that could handle almost any genre.

The look was just as distinctive as the sound: a compact, angular aluminum shell, anodized in a deep, jewel-like green that would become synonymous with the Andromeda name.

Think of Andromeda not as a single product, but an evolving line built on a single idea: a compact, green in-ear monitor that balances musicality and technical performance. Over the years, that idea has evolved through many iterations and special editions:

Different generations and special editions have their own flavor, but Andromeda has always gravitated around a recognizable sound:

Over nearly a decade, Andromeda has been called a “benchmark IEM,” a “staple of the hobby,” and one of the designs that helped shape modern multi-BA earphones.

It has earned that status not just by sounding good, but by evolving carefully, keeping what listeners loved about the original while trying new materials, internal architectures, and driver layouts. For many people, their first listen to an Andromeda is also their first step into high-end in-ear monitors.