Westone Audio · Etymotic · Dekoni Audio · Grell

The last inch of the signal chain.

Fidelity Audio Collective is home to four specialist brands making in-ear monitors, high-fidelity earplugs, headphones and the parts that keep them sounding right.

The brands

Four brands, each built around a different way of listening.

Every brand keeps its own identity, its own store and its own voice. Start with the one that fits how you listen.

Drummer on stage wearing Westone Audio in-ear monitors
Westone Audio

Custom and universal in-ear monitors

In-ear monitors for the stage and the people who live on it.

Westone Audio builds custom Elite Series monitors from an impression of your ear, plus universal-fit monitors for performers and everyday listeners. Its roots trace back to 1991 in Colorado, building custom in-ear monitors for touring artists like Rush and Def Leppard.

Visit westoneaudio.com
Etymotic ER20XS high-fidelity earplugs
Etymotic

Hearing protection and reference earphones

True to the ear since 1983.

Founded in 1983 by audiologist Mead Killion, Etymotic grew out of hearing science: how the ear works, and how to measure, protect and improve it. ER20 earplugs lower volume evenly so music stays clear, and ER series earphones remain a reference for accurate listening.

Visit etymotic.com
Dekoni Audio Elite Sheepskin earpads
Dekoni Audio

Earpads, cables and headphone upgrades

Make the headphones you already love even better.

Started in New Jersey in 2015, Dekoni makes replacement earpads tuned to specific headphone models, plus cables, eartips and headbands. Comfort comes first, and the sound follows the fit.

Visit dekoniaudio.com
Grell OAE2 open-back headphone
Grell

Open-back reference headphones

Headphones from the engineer behind the HD 600, HD 650 and HD 800.

Axel Grell spent three decades at Sennheiser before starting his own company in Germany. The OAE2 places its driver toward the front of the ear so music sits in front of you, the way it does with speakers.

Visit grellaudio.com

Milestones

Four decades of ear work, now under one roof.

1983

Etymotic

Audiologist Mead Killion founds Etymotic to bring hearing science to everyday listening.

2002

Westone Audio

The first Westone branded in-ear monitor arrives, building on custom IEM work for touring artists that began in 1991.

2015

Dekoni Audio

Dekoni starts making replacement earpads in New Jersey.

2020

Grell

Axel Grell launches his own headphone company in Germany.

2026

The Collective

Fidelity Audio Collective forms, bringing Westone Audio, Etymotic, Dekoni Audio and Grell together.

Run by people who have spent their careers behind the mixing desk and inside the lab.

For listeners and musicians

Each brand keeps its own store, its own support team and its own voice. Start with the one that fits how you listen, play or protect your hearing.

Find your brand

For dealers and partners

One relationship across four specialist brands, with sales in Texas and engineering in the Chicago area. Carry one line or all four.

Partner with us

Carry, distribute or license our brands.

Dealers, distributors, licensing partners and press start here.