Knowles Supertweeters Power New EarSonics Precision In-Ear Monitors

ITASCA, Ill., May 28, 2024 — Knowles Corporation (NYSE: KN), a market leader and global provider of advanced micro-acoustic microphones and speakers, audio solutions, and high-performance capacitors and RF products, today announced its selection by EarSonics to provide balanced armature (BA) drivers for its EM96 Customizable In-Ear Monitor (IEM).

Knowles BAs have long been a favorite of IEM designers thanks to their small form factor, powerful output, and treble extension capabilities. EM96 delivers unmatched precision and fidelity with a three-way crossover of six Knowles drivers per earpiece, including two woofers and two mid-range BAs. It is also the first IEM in Europe to use two Knowles Supertweeters.

Featuring a patented coil design with reduced inductance, the Knowles Supertweeter uses a specially constructed high-stiffness, low-mass reed to deliver unprecedented output and ultra-high treble frequency without requiring an amplifier or transformer. The Supertweeters enable EM96 to achieve a high-frequency response extending up to 25kHz.

“EarSonics sought to achieve world-class, high-res sound with the EM96,” said EarSonics CEO Franck Lopez. “Whether in the studio or playing live, being able to hear every note of a song is paramount for musicians and sound engineers. The Knowles BAs help us ensure true-to-life audio on par with professional-grade studio monitors.”

The unique driver architecture works with EarSonics TRUWAVETM and Ω-Corrector technology to achieve a wide stereo image, an exceptional air feeling, and a consistent frequency response suitable for a range of listening conditions.

“EarSonics uses Knowles BAs to create a distinct sound signature across its line of IEMS,” said Jon Kiachian, President of MedTech and Specialty Audio at Knowles Corporation. “Adding two of our Supertweeters to the EM96 will create a new benchmark for world-class frequency extension and sound clarity.”

The EM96 is available in Europe via the EarSonics website. To learn more about Knowles premium sound solutions for IEMs, visit