Knowles micro-size speakers

Seltech is the Worldwide Distributor and Key Account Agent of Knowles Sound Solutions for nearly 20 years in miniature speakers, receivers & multifunctionals.

Knowles Sound Solutions facts & figures:

• Global market and technology leader in dynamic speakers and receivers for cell phones for more than a decade
• Customized acoustic solutions for the telecom, automotive and multimedia market
• Over 5 billion products shipped to date
• First to market with major innovations
• Dedicated application support
• Advanced automated manufacturing with highest production capacity worldwide
• Best-in-class in-line measurement systems
• Acoustic competence since 1929

Knowles’ speakers (also called miniature speakers or micro-speakers) combine outstanding performance vs size ratio.

Knowles’ speakers are available in different shapes:

• rectangular (9 x 16 mm, 11 x 15 mm and 13 x 18 mm)
• round (Ø16.4 mm to Ø28 mm)

with spring contacts.

To view only wideband micro-size speakers and more generally Seltech’s wideband acoustic products, please click here to download a pdf.

Below, Knowles’ speaker portfolio:

Note 1: Contact system of all speakers is springs.
Note 2: Impedance of all speakers is typically 8 Ohms
*) average value measured in baffle
**) in front firing application without mesh, at -3dB points after resonance peaks, without EQ correction
***) using noise shaped signal according to product data sheet
****) @max sine power. Average value measured in baffle in 0.1 meter distance at max sine power, in typical backvolume