Visaton 101mm dia 20W nom Full Range Speaker Driver, 4Ω

The Visaton FR series is a full-range loudspeaker with two fixing lugs and shallow design. High degree of sound pressure and good high-range reproduction.

100–22000Hz frequency response
The speaker produce good high-range reproduction
86dB mean sound pressure level
133Hz resonance frequency
–25 to +70°C temperature range
0.35mH inductance of the voice coil