Aurum Cantus AC120/50CK

Woofer

4.5″ / 120 mm
Nominal diameter
43 Hz
Resonance
0.18
Q factor
88 dB
Sensitivity
± 6 mm
Linear excursion
300 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

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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
88.3
dB
Frequency response
43 - 7000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
43.0
Hz
Mechanical quality factor
QMS
3.40
Electrical quality factor
QES
0.19
Total quality factor
QTS
0.18

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
49
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
0.93
T
Force factor
Bl
10.6
N/A
Motor constant
Bl/√RE
4.01
N/√W
Diameter
120
mm
Height
20
mm

Diaphragm

Effective diameter
102
mm
Effective area
SD
82
cm²
Moving mass
MMS
11.5
g
Moving mass (without air load)
MMD
10.9
g

Suspensions

Stiffness
KMS
0.83
N/mm
Compliance
CMS
1210
µm/N
Equivalent volume to the compliance
VAS
12
L
Mechanical resistance
RMS
0.91
N·s/m

Dimensions

Nominal diameter
4.5
120
mm
Overall diameter
150
mm
Baffle cutout diameter
124
mm
Overall depth
81
mm
Flange thickness
6
mm
Mounting depth
75
mm
Volume occupied by the driver (estimated)
0.63
L
Net weight
2.38
kg
Frame material
Aluminum
Aurum Cantus AC120/50CK Impedance & Phase
Aurum Cantus AC120/50CK SPL
Aurum Cantus AC120/50CK Dimensions

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Similar woofers to Aurum Cantus AC120/50CK

accuton C168-6-990 Mid-range
6.5Mid-range
fS
55 Hz
SD
133 cm²
QTS
0.21
xmax
3.0 mm
SPL1W
92 dB
Bl/√RE
5.02
Pmax
240 W