KT 100 V - 4 Ohm

Art. No. 9070

10 cm (4") woofer with low resonant frequency and compact size. Large strokes possible due to elastic rubber surround and deep magnet while noise is minimized through venting of air gap and t-yoke. Simple basket for various installation possibilities.

Technical Data

Rated power
25 W
Maximum power
40 W
Nominal impedance Z
4 Ohm
Frequency response
32–9500 Hz
Mean sound pressure level
80 dB (1 W/1 m)
Resonance frequency fs
37 Hz
Height of front pole-plate
3 mm
Voice coil diameter
25 mm
Height of winding
7 mm
Cutout diameter
92 mm
Net weight
0.466 kg
D.C. resistance Rdc
3.6 Ohm
Mechanical Q factor Qms
Electrical Q factor Qes
Total Q factor Qts
Equivalent volume Vas
9.8 l
Effective piston area Sd
54.1 cm²
Dynamically moved mass Mms
7.5 g
Force factor Bxl
3.43 Tm
4.8 x 0.8 mm (+)2.8 x 0.8 mm (−)
Frequency- and impedance response
Directivity pattern