Dayton Audio PSS555-8
Subwoofer
21″ / 550 mm
Nominal diameter
28 Hz
Resonance
0.33
Q factor
96 dB
Sensitivity
± 11 mm
Linear excursion
2000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.6
dB
Frequency response
27 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
27.6
Hz
Mechanical quality factor
QMS
10.70
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
11.0
mm
Air volume displaced at xmax
VD
1909
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.4
Ω
Inductance (1kHz)
LE
1.8
mH
VC Diameter
114
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
29.7
N/A
Motor constant
Bl/√RE
12.8
N/√W
Weight
5.67
kg
Material
Ferrite
Diaphragm
Effective diameter
470
mm
Effective area
SD
1735
cm²
Moving mass
MMS
316
g
Moving mass (without air load)
MMD
265.9
g
Material
Treated Paper
Suspensions
Stiffness
KMS
9.09
N/mm
Compliance
CMS
110
µm/N
Equivalent volume to the compliance
VAS
444
L
Mechanical resistance
RMS
5.12
N·s/m
Surround material
Cloth
Dimensions
Nominal diameter
21
″
550
mm
Overall diameter
550
mm
Baffle cutout diameter
511
mm
Overall depth
254
mm
Volume occupied by the driver (estimated)
11.0
L
Frame material
Cast Aluminium
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SD
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SD
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