Knowles Supertweeters Power New EarSonics Precision In-Ear Monitors

May 28, 2024

Balanced armature drivers elevate the EM96 IEMs to deliver true-to-life sound for professional musicians, sound engineers and audiophiles.

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

About Knowles

Knowles Corporation (NYSE: KN) is a market leader and global provider of high-performance capacitors and radio frequency ("RF") filtering products, and advanced micro-acoustic microphones and balanced armature speakers, audio solutions, serving the medtech, defense, consumer electronics, electric vehicle, industrial, and communications markets. Knowles' focus on the customer, combined with unique technology, proprietary manufacturing techniques, and global operational expertise, enables us to deliver innovative solutions across multiple applications. Knowles, founded in 1946 and headquartered in Itasca, Illinois, has approximately 7,100 employees at facilities located in 15 countries around the world. For more information, visit


Sarah Cook

Knowles Investor Relations


Bethany DeMarco

Knowles Media Relations

Source: Knowles Corporation