KDW-100 10″ WOOFER 4Ω 100W

High efficiency mid-bass, 2.5” aluminium voice coil,
with very flat response up to 4 kHz.

Specifications
Nominal Diameter 250 mm (10 in.)
Nominal Impedance 8 Ω
Minumum Impedance 6.9 Ω
Power Handling
(60 –600 Hz)
Nominal1 250 W
Continuous Program2 500 W
Sensitivity (1W/1m)3 99 dB
Frequency Range 60-4000 Hz
Voice Coil Diameter 65 mm (2.5 in.)
Winding Material Aluminium
Former Material Glass Fibre
Winding Depth 12 mm (1/2 in.)
Magnetic Gap Depth 8 mm (5/16 in.)
Flux Density 1.25 T
Also available in 16 Ω, data upon request

Thiele & Small Parameters4
Fs 60 Hz
Re 5.7 Ω
Qes 0.19
Qms 6.3
Qts 0.18
Vas 37 dm.3 (1.3 cu. ft.)
Sd 320 cm.2 (49.1 sq. in.)
η0 4.1 %
X max ± 2.4 mm.
Mms 27 gr.
Bl 17.7 Tm
Le 1.3 mH

Mounting and Shipping Informations
Overall Diameter 260 mm. (10.2 in.)
Bolt Circle Diameter 244 mm. (9.6 in.)
Baffle Cutout Diameter 228 mm. (8.8 in.)
Depth 110 mm. (4.3 in.)
Flange and Gasket Thickness 17 mm. (2/3 in.)
Net Weight 7.1 Kg. (15.6 lb.)
Shipping Weight 7.8 Kg. (17.2 lb.)
Shipping Box 320x320x160 mm
(12x12x6.3 in.)

1 2 hours test made with continuous pink noise signal (6 dB crest factor) within the
specified range . Power calculated on rated minimum impedance. Loudspeaker in
free air.
2 Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
3 Applied RMS Voltage is set to 2.83V for 8 ohms and 4V for 16 ohms Nominal
Impedance. Average SPL from 200 to 4000 Hz.
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning
test.

Nominal Specifications

    Nominal Diameter 10“, 250 mm
    Overall Diameter 10.28“, 261 mm
    Bolt Circle Diameter 9.69“, 246 mm
    Baffle Cutout Diameter 9.06“, 230 mm
    Depth 5.56“, 141.3 mm
    Flange and Gasket Thickness 0.49“, 12.5 mm


Electrical Specifications

    Minimum Impedance 7.3 Ohm
    Nominal Impedance 8 Ohm
    Nominal Power Handling*** 700 W
    Maximum Power Handling**** 1,400 W
    Sensitivity (1W/1m) 96 dB
    Frequency Range 60 - 4000 Hz
    Voice Coil Diameter 4“, 100 mm
    Winding Material Aluminium
    Former Material Glass Fiber
    Winding Depth 0.87“, 22 mm
    Magnetic Gap Depth 0.47“, 12 mm
    Flux Density 1.3 T


THIELE & SMALL Parameters

    Resonant Frequency (fs) 60 Hz
    DC Resistance (Re) 5.5 Ohm
    BL Product (BL) 25.7 N/A
    Diaphragm Mass inc. Airload (Mms) 72.5 grams
    Mechanical Compliance of Suspension (Cms) 0.096 mm/N
    Rms 4.58 Kg/s
    Electromagnetic Q (Qes) 0.22
    Mechanical Q (Qms) 6.01
    Total Q (Qts) 0.23
    Compliance Equivalent Volume (Vas) 0.55 ft³, 15.65 dm³
    Surface Area of Cone (Sd) 52.5“², 339 cm²
    Maximum Linear Excursion (Xmax)* 9 mm
    Xdamage** 12.5 mm
    Coil Inductance (Le) 0.85 mH
    Diaphragm mass (Mmd) 69 g
    Eta Zero 1.46 %

Notes

    *Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
    **Maximum excursion before permanent damage
    ***2 Hours Test According to AES 2-1984 Rev. 2003
    ****Maximum power is defined as 3dB greater than nominal power