Pioneer TS-W261D4

2x4Ω

Subwoofer

10″ / 250 mm
Nominal diameter
46 Hz
Resonance
1.04
Q factor
86 dB
Sensitivity
± 10.1 mm
Linear excursion
700 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
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
86.2
dB
Frequency response
20 - 125
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
46.0
Hz
Mechanical quality factor
QMS
15.49
Electrical quality factor
QES
1.12
Total quality factor
QTS
1.04

Large signal parameters

Maximum linear excursion
xmax
10.1
mm
Air volume displaced at xmax
VD
354
cm³
Power handling
P
350
W
Program power
Pmax
700
W

Voice Coil

Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
6.6
Ω
Inductance (1kHz, in series)
LE
4.91
mH
VC Diameter
40
mm
Winding height
HVC
30.2
mm
Winding material
Copper

Magnet

Flux density
B
0.7177
T
Force factor (in series)
Bl
15.3
N/A
Motor constant
Bl/√RE
5.96
N/√W
Air gap height
HAG
10
mm
Weight
1.7
kg
Material
Ferrite

Diaphragm

Effective diameter
211
mm
Effective area
SD
350
cm²
Moving mass
MMS
123
g
Moving mass (without air load)
MMD
118
g
Material
IMPP

Suspensions

Stiffness
KMS
10.53
N/mm
Compliance
CMS
95
µm/N
Equivalent volume to the compliance
VAS
17.7
L
Mechanical resistance
RMS
2.33
N·s/m
Surround material
Fiber Reinforced Elastic Polymer

Dimensions

Nominal diameter
10
250
mm
Overall diameter
277
mm
Baffle cutout diameter
235
mm
Overall depth
155
mm
Flange thickness
16
mm
Mounting depth
139
mm
Volume occupied by the driver
1.22
L
Net weight
4.8
kg
Pioneer TS-W261D4 Dimensions

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