PRV Audio 8MR400A
Mid-range
8″ / 209 mm
Nominal diameter
79 Hz
Resonance
0.89
Q factor
93 dB
Sensitivity
± 3 mm
Linear excursion
400 W
Program Power
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
93.3
dB
Frequency response
80 - 8500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
79.1
Hz
Mechanical quality factor
QMS
10.79
Electrical quality factor
QES
0.97
Total quality factor
QTS
0.89
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Air volume displaced at xmax
VD
73
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz)
LE
0.2
mH
VC Diameter
38
mm
Winding height
HVC
8.8
mm
Winding material
Copper Clad Aluminium
Former material
Kapton
Magnet
Force factor
Bl
6.8
N/A
Motor constant
Bl/√RE
2.75
N/√W
Air gap height
HAG
5.5
mm
Material
Ferrite
Diaphragm
Effective diameter
176
mm
Effective area
SD
243
cm²
Moving mass
MMS
15.1
g
Moving mass (without air load)
MMD
12.4
g
Suspensions
Stiffness
KMS
3.73
N/mm
Compliance
CMS
268
µm/N
Equivalent volume to the compliance
VAS
22.2
L
Mechanical resistance
RMS
0.7
N·s/m
Dimensions
Nominal diameter
8
″
209
mm
Overall diameter
209
mm
Baffle cutout diameter
181
mm
Overall depth
96
mm
Flange thickness
6
mm
Mounting depth
90
mm
Volume occupied by the driver (estimated)
0.78
L
Net weight
2.0
kg
Frame material
Stamped Steel
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SpeakerbenchSimilar woofers to PRV Audio 8MR400A
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8″Mid Bass
fS
77 Hz
SD
241 cm²
75 - 7500 Hz
QTS
0.88
xmax
4.5 mm
SPL1W
91 dB
Bl/√RE
3.26
Pmax
450 W
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8″Mid Bass
fS
75 Hz
SD
241 cm²
75 - 7500 Hz
QTS
1.05
xmax
4.5 mm
SPL1W
91 dB
Bl/√RE
2.94
Pmax
450 W
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8″Mid-range
fS
73 Hz
SD
211 cm²
82 - 6000 Hz
QTS
0.70
xmax
0.5 mm
SPL1W
91 dB
Bl/√RE
3.16
Pmax
300 W