Every Campfire Audio IEM is designed and assembled by hand in Portland, Oregon. Not contracted out. Not scaled. The same workshop, the same small team, and the same production process that Ken Ball started with in 2015. This is what that looks like and why it matters to the sound.
Portland and the Workshop Behind the IEMs
Portland has a long, genuine history of independent craft manufacturing. The city's economy and culture have been shaped by small producers and businesses that chose quality and directness over volume. That is not a coincidence in terms of where we chose to build. It is a reason.
Our workshop is a small, direct-production environment where design and assembly happen in close proximity. The people who determine how an IEM should sound are close to the people building it. When something in the assembly process creates a problem, the feedback loop is immediate. When something about the tuning changes the build requirements, the production team knows before a single unit ships. That kind of integration between design and production is not something you get from a distributed supply chain.
Portland is also home to a substantial community of audio listeners and professionals. The brand did not develop in isolation. The listeners who have engaged with Campfire Audio over the decade are part of the same city, the same forums, and the same Pacific Northwest audio culture that the workshop exists within. That proximity has been part of what has kept production here, not an argument for moving it.
Scale is a choice. We have built the production process around craft and consistency rather than volume. It is what enables the quality standard that hand-built IEMs require, and it is a decision we have made continuously for ten years.
What Hand-Built Actually Means
"Hand-built" gets used as a marketing phrase often enough that it warrants specificity. Here is what it means in practice at our Portland workshop.
Each IEM passes through human hands at every stage of assembly. Driver installation, crossover assembly, acoustic component fitting, and final housing closure are not automated processes. They require skill, experience, consistent technique, and attention to the specific unit being assembled. The assembly team builds to a known standard and makes judgments at each stage that automated production cannot replicate at this scale.
Multi-driver configurations require particular care during assembly. Our Phase Harmony balanced armature arrays, used in models including Ponderosa and Fathom, depend on precise driver alignment. Small variations in driver placement affect crossover behavior and, ultimately, the acoustic performance of the finished IEM. Hand-assembly allows the team to verify and adjust at each stage. An automated line at this production volume cannot do that.
The cables included with every IEM are matched to the IEM's sonic character through our collaboration with ALO Audio, a sister brand specializing in cable design. That matching is a deliberate part of the production process. The cable that arrives with your IEM is not a generic inclusion. It is a considered pairing.
Every completed IEM is measured before it leaves the workshop using Audio Precision measurement systems. Most IEM manufacturers measure for frequency response, but channel matching standards vary considerably across the industry. We hold some of the strictest right-to-left channel matching tolerances available, verifying that both channels output identically on every unit before it ships. At lower price points, significant channel imbalance is a common quality control failure. Our process eliminates that variable entirely. Video documentation is available.
The People Who Build Them
Campfire Audio was founded by Ken Ball in Portland, Oregon in 2015. Ball had previously founded ALO Audio, a company focused on cable design for audio equipment and portable headphone amplifiers. The expertise in signal path, conductor materials, and acoustic component quality that ALO Audio built was directly formative for how Campfire Audio approached IEM production. The move from cables to IEMs was not a pivot into a new category. It was an extension of the same preoccupation with getting the signal path right, applied now to the transducer itself.
Ben Loeliger and Valivann Seangly are the industrial engineers and designers who work with Ken to engineer all Campfire IEMs. The three of them form the core of the team that determines what every IEM is and how it is built.
That small team has a direct consequence for the people who buy our IEMs. When something goes wrong and a customer contacts Campfire Audio, they reach people with hands-on knowledge of the product. The person answering the support contact is not a tier-one representative reading from a script. They are close to the same people who assembled the IEM. That kind of directness is not something we engineered as a customer service feature. It is a natural outcome of how we operate. Most audio brands at any price point cannot say the same.
Measurement: What Ships Has Been Verified
Every Campfire Audio IEM is measured using Audio Precision equipment before it leaves the workshop. Audio Precision is the professional standard for acoustic measurement in the audio industry, used by research institutions, manufacturers, and testing organizations that require precision and repeatability. Its use at the individual unit level, on every IEM we ship rather than on samples or batches, is a direct expression of the production philosophy.
Measurement at the unit level catches channel imbalance, frequency response deviation, and driver issues before the IEM reaches the listener. It is the final step in the hand-built process that closes the loop between assembly and performance. An IEM that passes assembly but fails measurement does not ship. That step exists because our production volume is small enough to make it possible and our production standard requires it.
Frequently Asked Questions
Where are Campfire Audio IEMs made?
Every Campfire Audio IEM is designed and assembled by hand in Portland, Oregon. Campfire Audio has maintained Portland-based production since Ken Ball founded the company in 2015. No part of the production process is outsourced to overseas manufacturing.
Who founded Campfire Audio?
Campfire Audio was founded by Ken Ball in Portland, Oregon in 2015. Ball previously founded ALO Audio, a cable design company. The expertise in cable design and audio component production informed how Campfire Audio approaches IEM manufacturing.
How many people work at Campfire Audio? Campfire Audio operates as a small, focused team of around ten people, many of whom have been with us for five or more years. The core team includes Ken Ball, Ben Loeliger, and Valivann Seangly. The same people involved in production are close to customer service, meaning support comes from people with direct, hands-on product knowledge.
What does hand-built mean for an IEM? Hand-built means each IEM is assembled by skilled technicians at every stage: driver installation, crossover assembly, acoustic component fitting, and final housing closure. Each completed unit is measured using Audio Precision equipment before it ships.
Does Campfire Audio measure every IEM before shipping? Yes. Every Campfire Audio IEM is measured using Audio Precision equipment before it leaves the Portland workshop. This verifies frequency response and channel matching against target specifications at the individual unit level, not on a sample basis.
How long has Campfire Audio been building IEMs in Portland? Campfire Audio has been building IEMs by hand in Portland, Oregon since its founding in 2015, representing ten years of continuous Portland-based production. The workshop, the team, and the production philosophy have remained consistent throughout.
See What Ten Years of Portland Production Looks Like
Browse the full IEM range to explore the IEMs built in our Portland workshop. For the story of how the range has developed across those ten years, see our product history. Every IEM we build starts and ends in Portland.
