Dayton Audio DA215-8
Woofer
8″ / 216 mm
Nominal diameter
35 Hz
Resonance
0.37
Q factor
88 dB
Sensitivity
± 5.3 mm
Linear excursion
120 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.6
dB
Frequency response
35 - 8000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
34.9
Hz
Mechanical quality factor
QMS
1.95
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
5.3
mm
Air volume displaced at xmax
VD
112
cm³
Power handling
P
60
W
Program power
Pmax
120
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.8
Ω
Inductance (1kHz)
LE
1.44
mH
VC Diameter
36
mm
Winding material
Copper
Former material
Aluminum
Magnet
Force factor
Bl
10.0
N/A
Motor constant
Bl/√RE
3.83
N/√W
Weight
0.85
kg
Material
Ferrite
Diaphragm
Effective diameter
164
mm
Effective area
SD
211
cm²
Moving mass
MMS
30.3
g
Moving mass (without air load)
MMD
28
g
Material
Aluminum
Suspensions
Stiffness
KMS
1.47
N/mm
Compliance
CMS
680
µm/N
Equivalent volume to the compliance
VAS
42.7
L
Mechanical resistance
RMS
3.41
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
8
″
216
mm
Overall diameter
216
mm
Baffle cutout diameter
180
mm
Overall depth
95
mm
Volume occupied by the driver (estimated)
0.86
L
Frame material
Steel
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6.5″Mid Bass
fS
35 Hz
SD
154 cm²
QTS
0.39
xmax
9.0 mm
SPL1W
87 dB
Bl/√RE
3.03
Pmax
150 W