8″ / 200 mm
Nominal diameter
68 Hz
Resonance
0.27
Q factor
93 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
92.9
dB
Frequency response
70 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
68.0
Hz
Mechanical quality factor
QMS
2.80
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.27
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Maximum excursion before damage
xlim
16.0
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
5.9
Ω
Inductance (1kHz)
LE
0.9
mH
VC Diameter
51
mm
Winding height
HVC
15
mm
Magnet
Force factor
Bl
15.5
N/A
Motor constant
Bl/√RE
6.38
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
167
mm
Effective area
SD
220
cm²
Moving mass
MMS
28
g
Moving mass (without air load)
MMD
25.7
g
Suspensions
Stiffness
KMS
5.44
N/mm
Compliance
CMS
184
µm/N
Equivalent volume to the compliance
VAS
12.5
L
Mechanical resistance
RMS
4.5
N·s/m
Dimensions
Nominal diameter
8
″
200
mm
Overall depth
95
mm
Volume occupied by the driver (estimated)
0.86
L
Net weight
3.25
kg
Similar woofers to Beyma 8WRS250
8″Woofer
fS
69 Hz
SD
220 cm²
70 - 4000 Hz
QTS
0.30
xmax
6.0 mm
SPL1W
93 dB
Bl/√RE
6.38
Pmax
600 W
8″Mid-range
fS
71 Hz
SD
202 cm²
65 - 3000 Hz
QTS
0.25
xmax
5.3 mm
SPL1W
94 dB
Bl/√RE
6.28
Pmax
400 W
10″Subwoofer
fS
60 Hz
SD
345 cm²
60 - 2500 Hz
QTS
0.24
xmax
9.0 mm
SPL1W
93 dB
Bl/√RE
10
Pmax
1400 W