B&C Speaker 8CXN51

Coaxial

8″ / 210 mm
Nominal diameter
68 Hz
Resonance
0.27
Q factor
94 dB
Sensitivity
± 6 mm
Linear excursion
500 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

Available on (affiliate link)

Parts Express
$$$

Specifications

Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.0
dB
Frequency response
70 - 18000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
68.0
Hz
Mechanical quality factor
QMS
4.70
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.27

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
132
cm³
Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
4.9
Ω
Inductance (1kHz)
LE
0.9
mH
VC Diameter
51
mm
Winding height
HVC
17
mm
Winding material
Aluminium
Former material
Glass Fibre

Magnet

Flux density
B
1.15
T
Force factor
Bl
12.6
N/A
Motor constant
Bl/√RE
5.69
N/√W
Air gap height
HAG
8
mm
Material
Neodymium Ring

Diaphragm

Effective diameter
167
mm
Effective area
SD
220
cm²
Moving mass
MMS
22
g
Moving mass (without air load)
MMD
19.5
g
Material
Polyimide

Suspensions

Stiffness
KMS
4.03
N/mm
Compliance
CMS
248
µm/N
Equivalent volume to the compliance
VAS
17
L
Mechanical resistance
RMS
2.0
N·s/m

Dimensions

Nominal diameter
8
210
mm
Overall diameter
225
mm
Baffle cutout diameter
187
mm
Overall depth
111
mm
Flange thickness
10
mm
Mounting depth
101
mm
Volume occupied by the driver (estimated)
1.0
L
Net weight
2.5
kg
B&C Speaker 8CXN51 Impedance
B&C Speaker 8CXN51 SPL
B&C Speaker 8CXN51 Directivity
B&C Speaker 8CXN51 Directivity map 1
B&C Speaker 8CXN51 Directivity map 2
B&C Speaker 8CXN51 Dimensions

Export this driver to a simulation software:

WinISDWinISDBasta!Basta!HornrespHornrespQSpeakersQSpeakersSpeakerSimSpeakerSimMfbLabsMfbLabsSpeakerbenchSpeakerbench

Similar speaker drivers to B&C Speaker 8CXN51

B&C Speaker 8MDN51 16Ω Mid Bass
8Mid Bass
fS
68 Hz
SD
220 cm²
70 - 4000 Hz
QTS
0.27
xmax
6.0 mm
SPL1W
94 dB
Bl/√RE
5.63
Pmax
400 W
Oberton 8MB201 Mid-range
8Mid-range
fS
68 Hz
SD
200 cm²
65 - 3000 Hz
QTS
0.31
xmax
7.0 mm
SPL1W
93 dB
Bl/√RE
5.21
Pmax
400 W
Beyma 10MC700Nd Woofer
10Woofer
fS
63 Hz
SD
350 cm²
65 - 4000 Hz
QTS
0.23
xmax
7.0 mm
SPL1W
95 dB
Bl/√RE
9.56
Pmax
1400 W