12″ / 304 mm
Nominal diameter
39 Hz
Resonance
0.72
Q factor
92 dB
Sensitivity
± 4 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
91.9
dB
Frequency response
39 - 5500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
4.24
Electrical quality factor
QES
0.87
Total quality factor
QTS
0.72
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
207
cm³
Power handling
P
100
W
Program power
Pmax
200
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
1.1
mH
VC Diameter
50
mm
Winding material
Aluminium
Magnet
Force factor
Bl
6.63
N/A
Motor constant
Bl/√RE
3.49
N/√W
Diameter
125
mm
Weight
0.96
kg
Diaphragm
Effective diameter
257
mm
Effective area
SD
518
cm²
Moving mass
MMS
40
g
Moving mass (without air load)
MMD
31.7
g
Suspensions
Stiffness
KMS
2.56
N/mm
Compliance
CMS
390
µm/N
Equivalent volume to the compliance
VAS
141
L
Mechanical resistance
RMS
2.31
N·s/m
Dimensions
Nominal diameter
12
″
304
mm
Overall diameter
304
mm
Baffle cutout diameter
281
mm
Overall depth
118
mm
Flange thickness
4
mm
Mounting depth
114
mm
Volume occupied by the driver (estimated)
1.3
L
Net weight
2.6
kg
Similar woofers to MONACOR SP-302E
12″Subwoofer
fS
43 Hz
SD
523 cm²
36 - 7000 Hz
QTS
0.70
xmax
2.5 mm
SPL1W
95 dB
Bl/√RE
3.16
Pmax
240 W
12″Subwoofer
fS
42 Hz
SD
530 cm²
QTS
0.66
xmax
9.0 mm
SPL1W
94 dB
Bl/√RE
4.27
Pmax
400 W
12″Subwoofer
fS
42 Hz
SD
530 cm²
QTS
0.66
xmax
9.0 mm
SPL1W
94 dB
Bl/√RE
4.27
Pmax
400 W