KILOMAX PRO Serie 1250W Recommended for professional audio subwoofer and woofer applications in sealed and vented enclosures. Not for horn-loading or scoops. SPECIFICATION Nominal Basket Diameter 18“, 457.2 mm Nominal Impedance 8 ohms Power Rating Watts 1250 W / Music Program 2500 W Resonance 33 Hz Usable Frequency Range 33 Hz – 600 Hz Sensitivity […]
Recommended for professional audio subwoofer and woofer applications in sealed and vented enclosures. Not for horn-loading or scoops.
SPECIFICATION
Nominal Basket Diameter 18“, 457.2 mm
Nominal Impedance 8 ohms
Power Rating Watts 1250 W / Music Program 2500 W
Resonance 33 Hz
Usable Frequency Range 33 Hz - 600 Hz
Sensitivity 95.5
Magnet Weight 109 oz.
Gap Height 0.375“, 9.53 mm
Voice Coil Diameter 4“, 101.6 mm
THIELE & Small Parameters
Resonant Frequency (fs) 33 Hz
DC Resistance (Re) 5.84
Coil Inductance (Le) 2.38 mH
Mechanical Q (Qms) 14.24
Electromagnetic Q (Qes) 0.58
Total Q (Qts) 0.56
Compliance Equivalent Volume (Vas) 239.9 liters / 8.5 cu. ft.
Peak Diaphragm Displacement Volume (Vd) 1136 cc
Mechanical Compliance of Suspension (Cms) 0.13 mm/N
BL Product (BL) 19.7 T-M
Diaphragm Mass inc. Airload (Mms) 186 grams
Efficiency Bandwidth Product (EBP) 57
Maximum Linear Excursion (Xmax) 9.8 mm
Surface Area of Cone (Sd) 1159.0 cm²
Maximum Mechanical Limit (Xlim) 19.1 mm
MOUNTING Information
Recommended Enclosure Volume
Sealed 133-147 liters/4.7-5.2 cu. ft.
Vented 144-258 liters/5.1-9.1 cu. ft.
Overall Diameter 18“, 457.2 mm
Baffle Hole Diameter 16.56“, 420.6 mm
Front Sealing Gasket fitted as standard
Rear Sealing Gasket fitted as standard
Mounting Holes Diameter 0.25“, 6.4 mm
Mounting Holes B.C.D. 17.25“, 438.2 mm
Depth 8.15“, 207 mm
MATERIALS of Construction
Copper voice coil
Polyimide former
Ferrite magnet
Extended core with Core Periphery Ventilation
Die-cast aluminum basket
Paper Cone
Cloth cone edge
Porous cloth top spider/ heatsink
Woofer 18 1000WRMS 97dB
2000 W continuous program power capacity
100 mm (4 in) copper voice coil
35 – 1000 Hz response
97 dB sensitivity
Aluminium demodulating ring allows a very low distortion figure
Double silicone spider with optimized compliance
Ventilated voice coil gap for reduced power compression
Nominal Specifications
Nominal Diameter 18“, 460 mm
Overall Diameter 18.11“, 460 mm
Bolt Circle Diameter 17.32“, 440 mm
Baffle Cutout Diameter 16.6“, 422 mm
Depth 9.09“, 231 mm
Flange and Gasket Thickness 0.55“, 14 mm
Electrical Specifications
Minimum Impedance 7.2 Ohm
Nominal Impedance 8 Ohm
Nominal Power Handling*** 1,600 W
Maximum Power Handling**** 3,200 W
Sensitivity (1W/1m) 98 dB
Frequency Range 30 - 1500 Hz
Voice Coil Diameter 4“, 100 mm
Winding Material Copper
Former Material Glass Fiber
Winding Depth 1.23“, 31.3 mm
Magnetic Gap Depth 0.61“, 15.5 mm
Flux Density 1.05 T
THIELE & SMALL Parameters
Resonant Frequency (fs) 32 Hz
DC Resistance (Re) 5.4 Ohm
BL Product (BL) 26.7 N/A
Diaphragm Mass inc. Airload (Mms) 240 grams
Mechanical Compliance of Suspension (Cms) 0.1 mm/N
Rms 5.27 Kg/s
Electromagnetic Q (Qes) 0.37
Mechanical Q (Qms) 9.3
Total Q (Qts) 0.36
Compliance Equivalent Volume (Vas) 6.9 ft³, 195.5 dm³
Surface Area of Cone (Sd) 182“², 1,174 cm²
Maximum Linear Excursion (Xmax)* 13 mm
Xdamage** 28 mm
Coil Inductance (Le) 1.45 mH
Diaphragm mass (Mmd) 217 g
Eta Zero 1.76 %
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
95 dB Sensitivity 1 W / 1 m
1500 W Power handling
4" Copper sandwich voice coil for low power compression
Neodymium magnet system
Double treated cone for water protection
Triple aluminum demodulating rings for ultra low distortion
Optimal for high output Subwoofers
1200 W continuous program power capacity
76 mm (3 in) copper voice coil
40 - 2000 Hz response
99 dB sensitivity
Double silicone spider with optimized compliance
General
Cone driver
B&C Speakers
18PS76
Informations
8 ohm
18 inch
Sub, Low
99 dB
98.11 dB
600 W
40÷2000 Hz
Fundamental parameters
1210 cm²
149 gr
1.9 mH
5 ohm
25.8 T.m
Small signal parameters
39 Hz
0.29
6.1
0.27
207 L
Datas
±7 mm
134 Hz
6.5 ohm
144 Hz
15.1 L
4 %
4.07 %
~10.7 kg
Dimensions
3 inch
24 mm
11 mm
460 mm
422 mm
16 mm
186 mm
Shape & Materials
Cylindrical
Ferrite
Aluminium
Copper
Glass fiber
Product type Cone driver
Brand Sica
Frequency coverage type Sub
Dimensional category 18 inch
Front chape Cylindrical
Magnet type Ferrite
Basket masterial Aluminium
Nominal impedance 8 ohm
Nominal power handling 700 W
Max power handling 1400 W
Sensitivity 97.3 dB
Voice coil diameter 4 inch
Winding depth 22 mm
Gap height 10 mm
Flux density 1.31 T
External diametre 462 mm
Mounting diametre 415 mm
Depth 203.5 mm
Depth after front 188.5 mm
Front thickness 15 mm
Diamètre aimant (mm) 220 mm
Weight 12.6 kg
Fs 38.6 Hz
Re 6.1 ohm
Qes 0.38
Qms 6.23
Qts 0.36
Vas 168.7 L
Sd 1164.2 cm²
Cms 88 µm/N
Efficiency 2.45 %
Xmax 9 mm
Xvar 11.5 mm
Mms 194 gr
BL 27.44 T.m
Le 1.88 mH
EBP 102
Dome material Paper
Cone material Paper
Surround material Cloth
Shipping weight 12.6 kg
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