Aurum Cantus AC300/75C2C
Woofer
12″ / 300 mm
Nominal diameter
22 Hz
Resonance
0.35
Q factor
89 dB
Sensitivity
± 8 mm
Linear excursion
500 W
Program Power
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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.5
dB
Frequency response
22 - 2800
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
22.0
Hz
Mechanical quality factor
QMS
2.16
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
400
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.0
Ω
Inductance (1kHz)
LE
1.31
mH
VC Diameter
75
mm
Winding height
HVC
17
mm
Magnet
Flux density
B
0.81
T
Force factor
Bl
13.2
N/A
Motor constant
Bl/√RE
4.99
N/√W
Diameter
170
mm
Height
22
mm
Diaphragm
Effective diameter
252
mm
Effective area
SD
500
cm²
Moving mass
MMS
84
g
Moving mass (without air load)
MMD
75.5
g
Suspensions
Stiffness
KMS
1.54
N/mm
Compliance
CMS
650
µm/N
Equivalent volume to the compliance
VAS
232
L
Mechanical resistance
RMS
5.38
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
330
mm
Baffle cutout diameter
285
mm
Overall depth
142
mm
Flange thickness
5
mm
Mounting depth
137
mm
Volume occupied by the driver (estimated)
2.7
L
Net weight
5.7
kg
Frame material
Aluminum
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SpeakerbenchSimilar subwoofers to Aurum Cantus AC300/75C2C
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12″Subwoofer
fS
21 Hz
SD
507 cm²
25 - 1000 Hz
QTS
0.38
xmax
12.0 mm
SPL1W
88 dB
Bl/√RE
6.1
Pmax
300 W
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