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
Weight
10.70 kg
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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
DELTA PRO Serie 400W
Recommended for professional audio in both sealed and vented enclosures. Ideal for full-range, mid/hi, and
monitor wedges.
SPECIFICATION
Nominal Basket Diameter 18“, 457 mm
Nominal Impedance 8 ohms
Power Rating Watts 500 W / Music Program 1000 W
Resonance 28 Hz
Usable Frequency Range 37 Hz - 250 Hz
Sensitivity 96
Magnet Weight 67 oz.
Gap Height 0.38“, 9.53 mm
Voice Coil Diameter 2.5“, 63.5 mm
THIELE & Small Parameters
Resonant Frequency (fs) 28 Hz
DC Resistance (Re) 5.3
Coil Inductance (Le) 3.43 mH
Mechanical Q (Qms) 10.38
Electromagnetic Q (Qes) 0.33
Total Q (Qts) 0.32
Compliance Equivalent Volume (Vas) 493.19 liters / 17.41 cu. ft.
Peak Diaphragm Displacement Volume (Vd) 796.00 cc
Mechanical Compliance of Suspension (Cms) 0.25 mm/N
BL Product (BL) 18.9 T-M
Diaphragm Mass inc. Airload (Mms) 128.1 grams
Efficiency Bandwidth Product (EBP) 84
Maximum Linear Excursion (Xmax) 6.7 mm
Surface Area of Cone (Sd) 1188.0 cm²
Maximum Mechanical Limit (Xlim) 15.0 mm
MOUNTING Information
Recommended Enclosure Volume
Sealed N/A
Vented 85-297 liters/3.0-10.5 cu. ft.
Overall Diameter 18.00“, 457.20 mm
Baffle Hole Diameter 16.57“, 420.88 mm
Front Sealing Gasket fitted as standard
Rear Sealing Gasket fitted as standard
Mounting Holes Diameter 0.28“, 7.11 mm
Mounting Holes B.C.D. 17.25“, 438.15 mm
Depth 8.13“, 206.50 mm
MATERIALS of Construction
Copper voice coil
Polyimide former
Ferrite magnet
Vented and extended core
Die-cast aluminum basket
Paper Cone
Cloth cone edge
Solid composition paper dust cap
Nominal Diameter 460 mm (18 in)
Overall Diameter 460 mm (18.11 in)
Bolt Circle Diameter 440 mm (17.32 in)
Baffle Cutout Diameter 424 mm (16.7 in)
Depth 202 mm (7.95 in)
Flange and Gasket Thickness 13.9 mm (0.55 in)
Net Weight 4.7 Kg (10.4 lb)
Shipping Box
(Single Carton Box) 536x536x293 mm (21.1x21.1x11.5 in)
Shipping Weight 6 Kg (13.2 lb)
Nominal Impedance 8 Ohm
Minimum Impedance 6 Ohm
Nominal Power Handling *** 600 W
Maximum Power Handling **** 1200 W
Sensitivity (1W/1m) 99 dB
Frequency Range 30÷3150 Hz
Voice Coil Diameter 77 mm (3 in)
Winding Material Cu
Former Material Glass Fiber
Winding Depth 22 mm (0.87 in)
Magnetic Gap Depth 10.5 mm (0.41 in)
Flux Density 1.2 T
Fs 30 Hz
Re 5.1 Ohm
Qes 0.34
Qms 8.68
Qts 0.33
Vas 404.2 dm^3 (14.27 ft^3)
Sd 1166 cm^2 (180.7 in^2)
Xmax * 9.25 mm
Xdamage ** 17.5 mm
Mms 134.3 g
Bl 19.5 N/A
Le 1.35 mH
Mmd 112.6 g
Cms 0.21 mm/N
Rms 2.91 Kg/s
Eta Zero 3.1 %
EBP 88 Hz
18 maximum output, 800W AES super vented gap cooling, 8Ω
95 dB Sensitivity 1 W / 1 m
1.200 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
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