Dayton Audio Reference RS270-4

Woofer

10″ / 272 mm
Nominal diameter
21 Hz
Resonance
0.27
Q factor
86 dB
Sensitivity
± 6 mm
Linear excursion
200 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
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Specifications

Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.8
dB
Frequency response
21 - 2000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
20.9
Hz
Mechanical quality factor
QMS
1.33
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.27

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
208
cm³
Power handling
P
100
W
Program power
Pmax
200
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.9
Ω
Inductance (1kHz)
LE
0.57
mH
VC Diameter
51
mm
Winding material
Copper
Former material
Aluminum

Magnet

Force factor
Bl
12.1
N/A
Motor constant
Bl/√RE
6.13
N/√W
Material
Ferrite

Diaphragm

Effective diameter
210
mm
Effective area
SD
346
cm²
Moving mass
MMS
98.6
g
Moving mass (without air load)
MMD
93.7
g
Material
Aluminum

Suspensions

Stiffness
KMS
1.7
N/mm
Compliance
CMS
590
µm/N
Equivalent volume to the compliance
VAS
98.6
L
Mechanical resistance
RMS
9.74
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
10
272
mm
Overall diameter
272
mm
Baffle cutout diameter
236
mm
Overall depth
113
mm
Volume occupied by the driver (estimated)
1.5
L
Frame material
Cast Aluminium
Dayton Audio RS270-4 Impedance
Dayton Audio RS270-4 SPL
Dayton Audio RS270-4 Dimensions

Export this driver to a simulation software:

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