| Content | General
Product type
Loudspeaker Chassis
Overall diameter
549.9 mm
Pitch Circle Diameter
525 mm
Cut- out Measurement
503.7 mm
Diameter of fixing holes
8.6 mm
Nominal Impedance
6 Ohm(s)
Nominal Load Capacity
2500 W
maximum rated load
5000 W
Sensitivity (1 W / 1 m)
97 dB
Frequency response
25 - 600 Hz
Voice Coil Material
copper
Thiele & Small Parameter
Fs (Resonance Frequency)
29 Hz
Re (DC resistance)
3.8 Ohm(s)
Qms (mechanical quality)
15.35
Le (inductance of the voice coil)
1.38 mH
Qes (electrical quality)
0.31
Qts (overall quality)
0.31
Vas (equivalent volume)
224.58
BL (power factor)
33.79 T/m
Xmax (maximum displacement)
21 mm
Cms (elasticity of the suspension)
0.06 mm/N
Sd (membrane area)
1642 cm²
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Specifications
Nominal Diameter 545 mm (21“)
Nominal Impedance 4 Ω
Rated Power AES 1000 W
Continuous Program Power 2000 W
Sensitivity @ 1W/1m 97.0 dB
Voice Coil Diameter 100 mm (4“)
Voice Coil Winding Depth 25 mm
Magnetic Gap Depth 17 mm
Flux Density 0.94 T
Magnet Weight 536 g
Net Weight 10.5 kg
Manual/Εγχειρίδιο
|
General
|
| Product type |
Cone driver |
| Brand |
B&C Speakers |
| Reference |
18PS100 |
| Product code |
ALT18PS1008M |
Informations
|
| Nominal impedance |
8 ohm |
| Dimensional category |
18 inch |
| Frequency coverage type |
Sub, Low |
| Manufacturer sensitivity |
95.5 dB |
| Calculated sensitivity |
93.92 dB |
| Nominal power handling |
700 W |
| Bandwidth |
30÷1000 Hz |
Fundamental parameters
|
| Sd |
1210 cm² |
| Mms |
202 gr |
| Le |
2.1 mH |
| Re |
5.3 ohm |
| BL |
22.5 T.m |
Small signal parameters
|
| Fs |
30 Hz |
| Qes |
0.41 |
| Qms |
4.6 |
| Qts |
0.39 |
| Vas |
245 L |
Datas
|
| Xmax |
±8 mm |
| Calculated Xmax |
±8.6667 mm |
| EBP |
73 Hz |
| Zmin |
6.3 ohm |
| Fs / Qts |
77 Hz |
| Vas * Qts² |
37.27 L |
| Efficiency |
1.6 % |
| Calculated efficiency |
1.55 % |
| Weight |
~10.5 kg |
| Recommended load volume |
250 L |
| Fréquence d'accord liée à la charge |
29 Hz |
Dimensions
|
| Voice coil diameter |
4 inch |
| Winding depth |
21 mm |
| Gap height |
11 mm |
| Outside diameter |
460 mm |
| Baffle cutout diameter |
422 mm |
| Front thickness |
16 mm |
| Depth after front |
181 mm |
Shape & Materials
|
| Front chape |
Cylindrical |
| Magnet type |
Ferrite |
| Basket masterial |
Aluminium |
| Winding material |
Copper |
| Voice coil former |
Glass fiber |
| Surround material |
Cloth |
| 2400 W continuous program power capacity
100 mm (4 in) copper voice coil
35 - 1000 Hz response
98 dB sensitivity
FEA optimized Neodymium magnet assembly
Double silicone spider with optimized compliance
Ventilated voice coil gap for reduced power compression
General
|
| Product type |
Cone driver |
| Brand |
B&C Speakers |
| Reference |
18NW100 |
| Product code |
ALT18NW1008 |
Informations
|
| Nominal impedance |
8 ohm |
| Dimensional category |
18 inch |
| Frequency coverage type |
Sub, Low |
| Manufacturer sensitivity |
98 dB |
| Calculated sensitivity |
96.29 dB |
| Nominal power handling |
1200 W |
| Bandwidth |
35÷1000 Hz |
Fundamental parameters
|
| Sd |
1210 cm² |
| Mms |
211 gr |
| Le |
1.7 mH |
| Re |
5.1 ohm |
| BL |
28 T.m |
Small signal parameters
|
| Fs |
31 Hz |
| Qes |
0.27 |
| Qms |
4.2 |
| Qts |
0.26 |
| Vas |
252 L |
Datas
|
| Xmax |
±9 mm |
| Calculated Xmax |
±10.5 mm |
| EBP |
115 Hz |
| Zmin |
6.3 ohm |
| Fs / Qts |
119 Hz |
| Vas * Qts² |
17.04 L |
| Efficiency |
2.7 % |
| Calculated efficiency |
2.67 % |
| Weight |
~9.3 kg |
| Recommended load volume |
160 L |
| Fréquence d'accord liée à la charge |
37 Hz |
Dimensions
|
| Voice coil diameter |
4 inch |
| Winding depth |
25 mm |
| Gap height |
12 mm |
| Outside diameter |
460 mm |
| Baffle cutout diameter |
422 mm |
| Front thickness |
16 mm |
| Depth after front |
193 mm |
Shape & Materials
|
| Front chape |
Cylindrical |
| Magnet type |
Neodymium |
| Basket masterial |
Aluminium |
| Winding material |
Copper |
| Voice coil former |
Glass fiber |
|
- Shape Cylindrical
- 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 4 ohm
- Nominal power handling 700 W
- Max power handling 1400 W
- Sensitivity 97.9 dB
- Voice coil diameter 4 inch
- Flux density 1.12 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 13.9 kg
- Fs 36.9 Hz
- Re 3.25 ohm
- Qes 0.29
- Qms 9.03
- Qts 0.28
- Vas 181.9 L
- Sd 1164.2 cm²
- Cms 95 µm/N
- Efficiency 3.02 %
- Xmax 6 mm
- Mms 196.2 gr
- BL 22.55 T.m
- Le 1.03 mH
- EBP 127
- Dome material Paper
- Cone material Paper
- Surround material Cloth
- Shipping weight 13.9 kg
|
Nominal Specifications
Nominal Diameter 18“, 460 mm
Overall Diameter 18.11“, 460 mm
Bolt Circle Diameter 17.32“, 440 mm
Baffle Cutout Diameter 16.61“, 422 mm
Depth 7.95“, 202 mm
Flange and Gasket Thickness 0.55“, 13.9 mm
Electrical Specifications
Minimum Impedance 6.6 Ohm
Nominal Impedance 8 Ohm
Nominal Power Handling*** 1,000 W
Maximum Power Handling**** 2,000 W
Sensitivity (1W/1m) 99 dB
Frequency Range 38 - 2500 Hz
Voice Coil Diameter 4“, 100 mm
Winding Material Aluminium
Former Material Glass Fiber
Winding Depth 0.9“, 23 mm
Magnetic Gap Depth 0.47“, 12 mm
Flux Density 1.3 T
THIELE & SMALL Parameters
Resonant Frequency (fs) 38 Hz
DC Resistance (Re) 5.5 Ohm
BL Product (BL) 24.5 N/A
Diaphragm Mass inc. Airload (Mms) 163 grams
Mechanical Compliance of Suspension (Cms) 0.11 mm/N
Rms 4.42 Kg/s
Electromagnetic Q (Qes) 0.35
Mechanical Q (Qms) 8.75
Total Q (Qts) 0.34
Compliance Equivalent Volume (Vas) 7.37 ft³, 208.8 dm³
Surface Area of Cone (Sd) 180.7“², 1,166 cm²
Maximum Linear Excursion (Xmax)* 9.5 mm
Xdamage** 17.5 mm
Coil Inductance (Le) 1.36 mH
Diaphragm mass (Mmd) 141 g
Eta Zero 3.14 %
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
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