Fi Car Audio TEAM 3 18 D2

2x1Ω
2x2Ω

Subwoofer

18″ / 470 mm
Nominal diameter
32 Hz
Resonance
0.27
Q factor
93 dB
Sensitivity
± 34 mm
Linear excursion
5000 W
Program Power
Fi Car Audio TEAM 3 18 D2 SubwooferFi Car Audio TEAM 3 18 D2 SubwooferFi Car Audio TEAM 3 18 D2 Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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
93.4
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
32.4
Hz
Mechanical quality factor
QMS
7.75
Electrical quality factor
QES
0.28
Total quality factor
QTS
0.27

Large signal parameters

Maximum linear excursion
xmax
34.0
mm
Air volume displaced at xmax
VD
4114
cm³
Power handling
P
2500
W
Program power
Pmax
5000
W

Voice Coil

Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.6
Ω
Inductance (1kHz, in series, estimated)
LE
1.93
mH

Magnet

Force factor (in series)
Bl
32.46
N/A
Motor constant
Bl/√RE
17.1
N/√W

Diaphragm

Effective diameter
393
mm
Effective area
SD
1210
cm²
Moving mass
MMS
396
g
Moving mass (without air load)
MMD
366.2
g

Suspensions

Stiffness
KMS
16.37
N/mm
Compliance
CMS
61
µm/N
Equivalent volume to the compliance
VAS
125
L
Mechanical resistance
RMS
10.4
N·s/m

Dimensions

Nominal diameter
18
″
470
mm
Overall diameter
470
mm
Baffle cutout diameter
425
mm
Mounting depth
311
mm
Volume occupied by the driver
7.36
L
Impedance
Step response
Tone Burst

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