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Knowles Acoustics has introduced a range of multi-way balanced armature receivers for in-ear, high-fidelity applications. The drivers are precisely tuned to both the ears’ natural resonance and the desired sound profile.

Joining together two or three receivers with complementary frequency ranges results in the optimal performance in terms of wide frequency range and SPL output level, according to the company.

Knowles is offering a range of products with either dual (two identical drivers but one tuned higher, one lower frequency range), two-way (typically tweeter-woofer), or three-way drivers (woofer-midrange- tweeter).

Product information

Dual or two-way drivers

  • GQ-30783-000: small woofer-tweeter combination; balanced sound profile
  • HE-31751-000: high-output SPL woofer-tweeter combination; wide bandwidth
  • TWFK-30017-000: small tweeter -woofer combination; excellent high-frequency extension
  • DWFK-31785-000: small Size; excellent high-frequency extension; high efficiency (output SPL/size)

Three-way drivers

  • GK-31732-000: three-way woofer-midrange- tweeter; premium bandwidth; highest output SPL


Knowles Acoustics

Knowles Corporation (NYSE: KN) is a market leader and global supplier of advanced micro-acoustic solutions and specialty components serving the mobile communications, consumer electronics, medical technology, military, aerospace and industrial markets. Knowles has a leading position in micro-electro-mechanical systems microphones, speakers and receivers which are used in smartphones, tablets and mobile handsets. Knowles is also a leading manufacturer of transducers used in hearing aids and other medical devices and has a strong position in oscillators (timing devices) and capacitor components which enable various types of communication. Knowles' focus on the customer, combined with unique technology, rigorous testing and global scale, helps to deliver innovative solutions and consistently dependable and precise products. Founded in 1946 and headquartered in Itasca, Illinois, Knowles has more than 10,000 employees in 36 locations around the world.

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