SEAS H1208-08 L22RN4X/P

Subwoofer

8″ / 220 mm
Nominal diameter
21 Hz
Resonance
0.27
Q factor
87 dB
Sensitivity
± 7 mm
Linear excursion
300 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
86.6
dB
Frequency response
20 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
21.0
Hz
Mechanical quality factor
QMS
3.13
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.27

Large signal parameters

Maximum linear excursion
xmax
7.0
mm
Maximum excursion before damage
xlim
10.5
mm
Air volume displaced at xmax
VD
154
cm³
Power handling
P
125
W
Program power
Pmax
300
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz)
LE
3.76
mH
VC Diameter
39
mm
Winding height
HVC
20
mm

Magnet

Flux density
B
0.9
T
Force factor
Bl
10.7
N/A
Motor constant
Bl/√RE
4.33
N/√W
Air gap height
HAG
6
mm
Weight
0.64
kg

Diaphragm

Effective diameter
167
mm
Effective area
SD
220
cm²
Moving mass
MMS
40
g
Moving mass (without air load)
MMD
37.5
g

Suspensions

Stiffness
KMS
0.71
N/mm
Compliance
CMS
1400
µm/N
Equivalent volume to the compliance
VAS
93
L
Mechanical resistance
RMS
1.76
N·s/m

Dimensions

Nominal diameter
8
220
mm
Volume occupied by the driver (estimated)
0.91
L
Net weight
2.2
kg
SEAS H1208-08 L22RN4X/P SPL & Impedance
SEAS H1208-08 L22RN4X/P Dimensions

Export this driver to a simulation software:

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