Aurum Cantus AC-200MK2
Woofer
8″ / 200 mm
Nominal diameter
25 Hz
Resonance
0.23
Q factor
89 dB
Sensitivity
± 8 mm
Linear excursion
300 W
Program Power
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Available on (affiliate link)
Parts Express
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.7
dB
Frequency response
25 - 3500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
25.0
Hz
Mechanical quality factor
QMS
3.99
Electrical quality factor
QES
0.25
Total quality factor
QTS
0.23
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
176
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
10.6
N/A
Motor constant
Bl/√RE
4.01
N/√W
Diameter
145
mm
Height
20
mm
Diaphragm
Effective diameter
167
mm
Effective area
SD
220
cm²
Moving mass
MMS
29.2
g
Moving mass (without air load)
MMD
26.7
g
Suspensions
Stiffness
KMS
0.63
N/mm
Compliance
CMS
1590
µm/N
Equivalent volume to the compliance
VAS
108
L
Mechanical resistance
RMS
1.15
N·s/m
Dimensions
Nominal diameter
8
″
200
mm
Overall diameter
222
mm
Baffle cutout diameter
185
mm
Overall depth
102
mm
Flange thickness
5
mm
Mounting depth
97
mm
Volume occupied by the driver (estimated)
1.1
L
Net weight
3.01
kg
Frame material
Aluminum
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