Knowles balanced armature speakers - ED/FED Series

ED Series:

One of Knowles’ most versatile and most popular speakers, its compact size and appreciable output power make the ED speaker suitable for a variety of instruments.

• • • Undamped, screen damped, internally damped, and Ferrofluid ™ damped responses
    • Numerous port locations and coil impedances
    • High efficiency and low distortion

FED Series:

The addition of Ferrofluid ™ to Knowles ED series speakers improves mechanical shock survival and provides peak damping to smooth frequency response.

• • • Ferrofluid ™ damped with 2dB, 4dB, or 6dB peak amplitude
    • Superior shock performance and reduced speaker vibration
    • Two-terminal zero-bias and three-terminal center-tapped configurations
    • Numerous port locations and coil impedances