MONACOR SP-304PA

Woofer

12″ / 305 mm
Nominal diameter
40 Hz
Resonance
0.52
Q factor
91 dB
Sensitivity
± 3.25 mm
Linear excursion
350 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
91.1
dB
Frequency response
40 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
3.87
Electrical quality factor
QES
0.60
Total quality factor
QTS
0.52

Large signal parameters

Maximum linear excursion
xmax
3.25
mm
Air volume displaced at xmax
VD
167
cm³
Power handling
P
175
W
Program power
Pmax
350
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
0.4
mH
VC Diameter
39
mm
Winding material
Aluminium

Magnet

Force factor
Bl
9.39
N/A
Motor constant
Bl/√RE
4.95
N/√W
Diameter
125
mm
Weight
0.85
kg

Diaphragm

Effective diameter
256
mm
Effective area
SD
514
cm²
Moving mass
MMS
63
g
Moving mass (without air load)
MMD
54.8
g

Suspensions

Stiffness
KMS
3.33
N/mm
Compliance
CMS
300
µm/N
Equivalent volume to the compliance
VAS
117
L
Mechanical resistance
RMS
4.09
N·s/m

Dimensions

Nominal diameter
12
305
mm
Overall diameter
305
mm
Baffle cutout diameter
280
mm
Overall depth
130
mm
Flange thickness
0
mm
Mounting depth
130
mm
Volume occupied by the driver (estimated)
1.6
L
Net weight
3.0
kg
MONACOR SP-304PA SPL & Impedance
MONACOR SP-304PA Dimensions

Export this driver to a simulation software:

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Similar woofers to MONACOR SP-304PA

Beyma 12BR70 Subwoofer
12Subwoofer
fS
31 Hz
SD
540 cm²
35 - 4000 Hz
QTS
0.50
xmax
8.0 mm
SPL1W
90 dB
Bl/√RE
5.11
Pmax
250 W