Aurum Cantus AC-250MK2
Woofer
10″ / 250 mm
Nominal diameter
23 Hz
Resonance
0.42
Q factor
86 dB
Sensitivity
± 8 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.8
dB
Frequency response
23 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
23.0
Hz
Mechanical quality factor
QMS
3.12
Electrical quality factor
QES
0.49
Total quality factor
QTS
0.42
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
277
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.0
Ω
Inductance (1kHz)
LE
0.67
mH
VC Diameter
50
mm
Winding height
HVC
15
mm
Magnet
Flux density
B
1.11
T
Force factor
Bl
8.4
N/A
Motor constant
Bl/√RE
3.17
N/√W
Diameter
145
mm
Height
20
mm
Diaphragm
Effective diameter
210
mm
Effective area
SD
346
cm²
Moving mass
MMS
50.5
g
Moving mass (without air load)
MMD
45.6
g
Suspensions
Stiffness
KMS
0.73
N/mm
Compliance
CMS
1380
µm/N
Equivalent volume to the compliance
VAS
235
L
Mechanical resistance
RMS
2.34
N·s/m
Dimensions
Nominal diameter
10
″
250
mm
Overall diameter
278
mm
Baffle cutout diameter
235
mm
Overall depth
121
mm
Flange thickness
5
mm
Mounting depth
116
mm
Volume occupied by the driver (estimated)
1.7
L
Net weight
3.92
kg
Frame material
Aluminum
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10″Woofer
fS
23 Hz
SD
346 cm²
23 - 3000 Hz
QTS
0.44
xmax
8.0 mm
SPL1W
85 dB
Bl/√RE
3.47
Pmax
300 W