Dayton Audio Classic DCS305-4
Subwoofer
12″ / 306 mm
Nominal diameter
24 Hz
Resonance
0.4
Q factor
87 dB
Sensitivity
± 9.3 mm
Linear excursion
500 W
Program Power
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Available on (affiliate link)
Parts Express
$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.8
dB
Frequency response
23 - 200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
24.2
Hz
Mechanical quality factor
QMS
5.07
Electrical quality factor
QES
0.43
Total quality factor
QTS
0.40
Large signal parameters
Maximum linear excursion
xmax
9.3
mm
Air volume displaced at xmax
VD
464
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
2.06
mH
VC Diameter
66
mm
Winding material
Copper
Former material
Kapton® / Polyimide
Magnet
Force factor
Bl
13.7
N/A
Motor constant
Bl/√RE
7.54
N/√W
Material
Ferrite
Diaphragm
Effective diameter
252
mm
Effective area
SD
499
cm²
Moving mass
MMS
160
g
Moving mass (without air load)
MMD
152
g
Material
Paper / Kevlar
Suspensions
Stiffness
KMS
3.7
N/mm
Compliance
CMS
270
µm/N
Equivalent volume to the compliance
VAS
92.3
L
Mechanical resistance
RMS
4.8
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
12
″
306
mm
Overall diameter
306
mm
Baffle cutout diameter
275
mm
Overall depth
153
mm
Volume occupied by the driver (estimated)
2.6
L
Frame material
Steel
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