8″ / 200 mm
Nominal diameter
74 Hz
Resonance
0.17
Q factor
96 dB
Sensitivity
± 6 mm
Linear excursion
400 W
Program Power
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Available on (affiliate link)
Amazon.com
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.5
dB
Frequency response
70 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
74.0
Hz
Mechanical quality factor
QMS
2.70
Electrical quality factor
QES
0.19
Total quality factor
QTS
0.17
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
132
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
0.4
mH
VC Diameter
51
mm
Winding height
HVC
19
mm
Winding material
Copper
Former material
Glass Fibre
Magnet
Flux density
B
1.3
T
Force factor
Bl
18.9
N/A
Motor constant
Bl/√RE
8.29
N/√W
Air gap height
HAG
10
mm
Material
Neodymium Ring
Diaphragm
Effective diameter
167
mm
Effective area
SD
220
cm²
Moving mass
MMS
28
g
Moving mass (without air load)
MMD
25.5
g
Material
Waterproof Both Sides
Suspensions
Stiffness
KMS
6.06
N/mm
Compliance
CMS
165
µm/N
Equivalent volume to the compliance
VAS
11
L
Mechanical resistance
RMS
4.82
N·s/m
Dimensions
Nominal diameter
8
″
200
mm
Overall diameter
225
mm
Baffle cutout diameter
187
mm
Overall depth
100
mm
Flange thickness
11
mm
Mounting depth
89
mm
Volume occupied by the driver
1.1
L
Net weight
3.05
kg
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Export this driver to a simulation software:
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QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to B&C Speaker 8NW51
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8″Coaxial
fS
85 Hz
SD
202 cm²
85 - 20000 Hz
QTS
0.16
xmax
4.3 mm
SPL1W
99 dB
Bl/√RE
7.64
Pmax
500 W
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8″Woofer
fS
69 Hz
SD
220 cm²
80 - 6000 Hz
QTS
0.18
xmax
5.0 mm
SPL1W
96 dB
Bl/√RE
7.25
Pmax
1000 W
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8″Mid-range
fS
75 Hz
SD
214 cm²
90 - 5000 Hz
QTS
0.18
xmax
2.6 mm
SPL1W
97 dB
Bl/√RE
7.2
Pmax
400 W