12″ / 300 mm
Nominal diameter
17 Hz
Resonance
0.32
Q factor
86 dB
Sensitivity
± 12.5 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.2
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
17.0
Hz
Mechanical quality factor
QMS
5.01
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.32
Large signal parameters
Maximum linear excursion
xmax
12.5
mm
Maximum excursion before damage
xlim
28.0
mm
Air volume displaced at xmax
VD
583
cm³
Power handling
P
150
W
Program power
Pmax
350
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
2.6
Ω
Inductance (1kHz)
LE
0.83
mH
VC Diameter
51
mm
Winding height
HVC
33
mm
Magnet
Force factor
Bl
10.5
N/A
Motor constant
Bl/√RE
6.51
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
244
mm
Effective area
SD
466
cm²
Moving mass
MMS
135
g
Moving mass (without air load)
MMD
127.7
g
Material
Anodized Aluminium
Suspensions
Stiffness
KMS
1.54
N/mm
Compliance
CMS
650
µm/N
Equivalent volume to the compliance
VAS
197
L
Mechanical resistance
RMS
2.88
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Volume occupied by the driver (estimated)
2.8
L
Net weight
6.3
kg
Similar subwoofers to Scan-Speak 30W/4558T00
12″Subwoofer
fS
17 Hz
SD
466 cm²
QTS
0.32
xmax
12.5 mm
SPL1W
86 dB
Bl/√RE
6.51
Pmax
350 W
10″Woofer
fS
20 Hz
SD
346 cm²
20 - 3000 Hz
QTS
0.29
xmax
8.0 mm
SPL1W
87 dB
Bl/√RE
4.46
Pmax
300 W
13″Subwoofer
fS
17 Hz
SD
526 cm²
QTS
0.32
xmax
14.0 mm
SPL1W
86 dB
Bl/√RE
7.1
Pmax
550 W