B&C Speaker 8FG64

16Ω

Subwoofer

8″ / 200 mm
Nominal diameter
51 Hz
Resonance
0.31
Q factor
90 dB
Sensitivity
± 7 mm
Linear excursion
600 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
Sensitivity (1W, 1m, infinite baffle)
SPL1W
90.2
dB
Frequency response
50 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
51.0
Hz
Mechanical quality factor
QMS
10.10
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.31

Large signal parameters

Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
154
cm³
Power handling
P
300
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
1.7
mH
VC Diameter
64
mm
Winding height
HVC
19
mm
Winding material
Copper
Former material
Glass Fibre

Magnet

Flux density
B
0.9
T
Force factor
Bl
15.8
N/A
Motor constant
Bl/√RE
6.56
N/√W
Air gap height
HAG
10
mm
Material
Ferrite

Diaphragm

Effective diameter
167
mm
Effective area
SD
220
cm²
Moving mass
MMS
41
g
Moving mass (without air load)
MMD
38.5
g
Material
Waterproof Front Side

Suspensions

Stiffness
KMS
4.41
N/mm
Compliance
CMS
227
µm/N
Equivalent volume to the compliance
VAS
15
L
Mechanical resistance
RMS
1.3
N·s/m

Dimensions

Nominal diameter
8
200
mm
Overall diameter
225
mm
Baffle cutout diameter
187
mm
Overall depth
100
mm
Flange thickness
9
mm
Mounting depth
91
mm
Volume occupied by the driver
1.5
L
Net weight
4.0
kg
B&C Speaker 8FG64 Impedance
B&C Speaker 8FG64 SPL
B&C Speaker 8FG64 Dimensions

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