| Content | BETA- 12A Series Standard American
Recommended for professional audio and bass guitar applications as a woofer in a vented enclosure. Also
works well for PA in a sealed or bandpass enclosure.
SPECIFICATION
- Nominal Basket Diameter 12", 304.8 mm
- Nominal Impedance 8 ohms
- Power Rating Watts 250 W / Music Program 500 W
- Resonance 47 Hz
- Usable Frequency Range 43 Hz - 3.8 kHz
- Sensitivity 98
- Magnet Weight 38 oz.
- Gap Height 0.312", 7.92 mm
- Voice Coil Diameter 2", 50.8 mm
THIELE & Small Parameters
- Resonant Frequency (fs) 47 Hz
- DC Resistance (Re) 5.0
- Coil Inductance (Le) 0.64 mH
- Mechanical Q (Qms) 6.00
- Electromagnetic Q (Qes) 0.50
- Total Q (Qts) 0.46
- Compliance Equivalent Volume (Vas) 120.1 liters / 4.2 cu. ft.
- Peak Diaphragm Displacement Volume (Vd) 237 cc
- Mechanical Compliance of Suspension (Cms) 0.29 mm/N
- BL Product (BL) 10.8 T-M
- Diaphragm Mass inc. Airload (Mms) 40 grams
- Efficiency Bandwidth Product (EBP) 94
- Maximum Linear Excursion (Xmax) 4.4 mm
- Surface Area of Cone (Sd) 538.9 cm²
- Maximum Mechanical Limit (Xlim) 11 mm
MOUNTING Information
- Recommended Enclosure Volume
Sealed 25.5-35.4 liters, 0.9-1.25 cu.ft.
Vented 36.8-139 liters/1.3-4.9 cu.ft.
- Overall Diameter 12.03", 305.5 mm
- Baffle Hole Diameter 10.95", 278.1 mm
- Front Sealing Gasket standard fitted as standard
- Rear Sealing Gasket standard fitted as standard
- Mounting Holes Diameter 0.25", 6.4 mm
- Mounting Holes B.C.D. 11.59", 294.3 mm
- Depth 4.57", 116 mm
MATERIALS of Construction
- Copper voice coil
- Polyimide former
- Ferrite magnet
- Vented and extended core
- Pressed steel basket
- Paper Cone
- Cloth cone edge
- Solid composition paper dust cap
|
Specification
Nominal Diameter 320 (12) mm (in)
Nominal Impedance (1) 8 Ohm
Minimum Impedence 7.5 Ohm
Nominal Power Handling (2) 450 W
Continuous Power Handling (3) 900 W
Sensitivity (1W/1m) (4) 95 dB
Frequency Range 40 - 1000 Hz
Voice Coil Diameter 76 (3) mm (in)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 22 (0.9) mm (in)
Magnetic Gap Depth 10.5 (0.4) mm (in)
Flux Density 1.15 T
Thiele & Small Parameters
Fs 42 Hz
Re 6.1 Ohm
Qes 0.22
Qms 3.8
Qts 0.2
Vas 75 (2.6) dm3 (ft3)
Sd 522 (80.9) cm2 (in2)
Eta Zero 2.4 %
Xmax +/- 7 mm
Xvar +/- 9 mm
Mms 74 g
Bl 23.5 Txm
Le 2 mH
Mounting and Shipping Info
Overall Diameter 316 mm (12.4 in)
Bolt Circle Diameter 296 mm (11.6 in)
Baffle Cutout Diameter 282 mm (11.1 in)
Depth 140 mm (5.5 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 7.6 kg (16.7 lb)
Shipping Weight 8.4 kg (18.5 lb)
Shipping Box 340x340x170 mm
(13.4x13.4x6.7 in)
1For different impedances, please ask.
22 hours test made with continuous pink noise signal (6 dB crest factor).
Power calculated on rated minimum impedance.
3Power on Continuous Program is defined as 3 dB greater than the
Nominal rating.
4Applied RMS Voltage is set to 2.83V for 8 ohms Nominal Impedance. | The B&C 12NW100 speaker is designed to produce bass, it is typically a 12 inch usable as a bass power speaker in a subwoofer for a compact system often transported. The 12NW100 will delight you with bass-reflex or band-pass load, its significant admissible electrical power makes it a real machine for producing bass, however, special care must be taken with the amplification dedicated to it.
2000 W continuous program power capacity
100 mm (4 in) copper voice coil
45 - 1500 Hz response
96 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 |
12NW100 |
| Product code |
ALT12NW1008 |
Informations
|
| Nominal impedance |
8 ohm |
| Dimensional category |
12.5 inch |
| Frequency coverage type |
Sub, Low, Midbass |
| Manufacturer sensitivity |
96 dB |
| Calculated sensitivity |
93.76 dB |
| Nominal power handling |
1000 W |
| Bandwidth |
45÷1500 Hz |
Fundamental parameters
|
| Sd |
531 cm² |
| Mms |
119 gr |
| Le |
1.9 mH |
| Re |
5.1 ohm |
| BL |
28 T.m |
Small signal parameters
|
| Fs |
42 Hz |
| Qes |
0.21 |
| Qms |
3.6 |
| Qts |
0.2 |
| Vas |
44 L |
Datas
|
| Xmax |
±9 mm |
| Calculated Xmax |
±10.5 mm |
| EBP |
200 Hz |
| Zmin |
6.2 ohm |
| Fs / Qts |
210 Hz |
| Vas * Qts² |
1.76 L |
| Efficiency |
1.7 % |
| Calculated efficiency |
1.5 % |
| Weight |
~8.2 kg |
| Recommended load volume |
50 L |
| Fréquence d'accord liée à la charge |
50 Hz |
Dimensions
|
| Voice coil diameter |
4 inch |
| Winding depth |
25 mm |
| Gap height |
12 mm |
| Outside diameter |
319 mm |
| Baffle cutout diameter |
281 mm |
| Front thickness |
13 mm |
| Depth after front |
124 mm |
Shape & Materials
|
| Front chape |
Cylindrical |
| Magnet type |
Neodymium |
| Basket masterial |
Aluminium |
| Winding material |
Copper |
| Voice coil former |
Glass fiber |
|
| 2000 W continuous program power capacity |
|
| 100 mm (4 in) copper voice coil |
|
| 45 – 1000 Hz response |
|
| 95 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 |
|
- Neodymium Coaxial Transducer
- 98 dB Sensitivity 1 W / 1 m
- 500 W + 80 W Power Handling
- 3" Copper Sandwich Voice Coil
- Triple Aluminum demodulating Rings
- Elliptical 80° x 60° Waveguide for precise directivity
- Single Point Source providing coherent Wave Front
- Very high SPL, superb Quaity Sound
- Optimal for compact 2-way Systems
|
| 400 W continuous program power capacity |
| | 70° nominal coverage |
| | 60 – 18000 Hz response |
| | 96 dB sensitivity |
| | Single Neodymium magnet assembly |
| | XO-6 dedicated crossover network |
|
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