Dayton Audio MB820-8
Mid Bass
8″ / 209 mm
Nominal diameter
69 Hz
Resonance
0.46
Q factor
93 dB
Sensitivity
± 4 mm
Linear excursion
400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
92.6
dB
Frequency response
100 - 7500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
69.0
Hz
Mechanical quality factor
QMS
3.83
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.46
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
98
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
1.04
mH
VC Diameter
51
mm
Winding material
CCA
Magnet
Force factor
Bl
9.6
N/A
Motor constant
Bl/√RE
4.19
N/√W
Weight
1.077
kg
Material
Ferrite
Diaphragm
Effective diameter
176
mm
Effective area
SD
244
cm²
Moving mass
MMS
20.9
g
Moving mass (without air load)
MMD
18.2
g
Material
Paper
Suspensions
Stiffness
KMS
3.97
N/mm
Compliance
CMS
252
µm/N
Equivalent volume to the compliance
VAS
15.8
L
Mechanical resistance
RMS
2.37
N·s/m
Surround material
Cloth
Dimensions
Nominal diameter
8
″
209
mm
Overall diameter
209
mm
Baffle cutout diameter
181
mm
Overall depth
91
mm
Volume occupied by the driver (estimated)
0.77
L
Frame material
Steel
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SpeakerbenchSimilar speaker drivers to Dayton Audio MB820-8
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10″Woofer
fS
65 Hz
SD
347 cm²
60 - 4000 Hz
QTS
0.41
xmax
7.0 mm
SPL1W
93 dB
Bl/√RE
6.57
Pmax
1200 W
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10″Coaxial
fS
63 Hz
SD
320 cm²
65 - 18000 Hz
QTS
0.42
xmax
5.5 mm
SPL1W
93 dB
Bl/√RE
5.71
Pmax
500 W