System Specifications; Woofer Specifications - KEF C series Service Manual

System Specifications

Frequency Range
SPL Sensitivity
Nominal Rating
Dimension (H x W x D)
Net Weight
Finish

Woofer Specifications

Rated Impedance
Sweep Test
Resonant Frequency (Fo)
Sensitivity
Frequency Response
Rated Power Input
Power Test
Heat Test
Humidity Test
Main Magnet
Bucking magnet
Voice Coil Bobbin Material
Cone Material
Surround Material
63 Hz~ 40K Hz
87dB @1W/m
10~100W
260x150x221 mm
3.2kg / pcs
Black or EWL
6+/-1.2 ohms at 1V 400 Hz
Sine Wave 5.5V at 20~20K Hz
70 +/- 14Hz at 1V
86+/-2 dB/W/m
Fo - 3K Hz
30W
30W RMS/Channel
(The rated power is verified by performing power handling
test by feeding rated output with IEC268-5 for 8 hours)
o
60 C 25~50% R.H. 24 hours
o
40 C 90~95%R.H. 24 hours
Ø70 x Ø32x 10mm Ferrite
Ø70x Ø32 x 10mm Ferrite
Al
Paper with PP coated
Rubber
3