The ultimate evolution of Campfire's all-balanced armature IEMs 

All-New Driver Configuration

Fathom is the first in Campfire's long line of IEMs to utilize our new six-balanced-armature internal architecture. These six drivers are divided evenly among the frequency bands, with two low, two mid, and two high drivers. 

This configuration is the synthesis of nearly a decade of experience and refinement of our balanced armature applications, taking this technology to its ultimate capabilities and maximizing technical performance. 

Fathom's sonic signature is carefully shaped to deliver a detailed presentation with just the right touch of mid-band warmth that elevates vocal performance and offers a glowing musical experience.

"Considering its beautiful design and build quality, married with a sound that is engaging yet polished and easy to listen to, the Fathom has everything it takes to become the new bestseller from CFA"

- Paweł Szachno, Ear Fidelity

  • Peak Performance

    Fathom is precision engineered inside-and-out by the same engineering team that has brought you all Campfire IEMs for years. Leveraging our many in-house designs and advancements, Fathom is the new standard bearer for the all-BA branch of our IEM evolution.

  • Tuned With Intention

    This curve displays relative volume levels at each point across the frequency spectrum, reflecting Fathom's careful balance and refinement in tuning. Though FR curves are a great general guide, they can't convey technicalities like soundstage, imaging, layering, etc

Premium Housing, Subtle Style

Fathom is encased in a machined aluminum body anodized in a sleek, black, bright-dip. The Rainbow PVD fasteners cast a vibrant spectrum of light against the deep black of the anodized shell, creating a striking contrast that is both visually captivating and elegantly understated.

"Fathom represents an evolution of the Andromeda formula that feels highly familiar yet changed in a meaningful way that earns the new title."

- Ryan Soo, Everyday Listening

Phase Harmony Engineering

At Campfire Audio, our philosophy regarding driver treatment informs a considered approach that emphasizes quality over quantity. In the arms-race to fit a higher and higher number of drivers into an earphone, we find that a results-driven technique to driver treatment produces superior results with less room for pitfalls and ever-expanding variables that can undermine product consistency. 

One of the products of this approach is our Phase Harmony Engineering, that allows us to segment the frequency spectrum and assign these segments to specific drivers, and allows those drivers to apply their strengths to that area. Using a combination of precision engineered driver housings and shell geometry, coupled with custom damping values we are able to physically shape the tuning and response of the drivers, and further, their interaction with one another. This driver-to-driver interaction is crucial to eliminating points of potential phase cancellation and creating the intangibles that don’t show on a frequency response curve; imaging, separation, resolution, and soundstage. 

  • Fully Equipped

    Fathom includes a premium leather case, handmade by our friends in Portugal, two of our new TimeStream cables (3.5, & 4.4), a two pocket Breezy Bag Micro, a full compliment of eartips, an IEM Cleaning Tool, Microfiber cleaning cloth, and our famous CA Lapel Pin.

  • Built by Hand in the United States

    All units of Fathom are meticulously buillt by hand by a small team in Portland, Oregon. Each unit is stamped with the signature of one of our five incredible production technicians that built your earphone from start to finish.

Take your listenting to the next level with Fathom by Campfire Audio