4″ / 105 mm
Nominal diameter
65 Hz
Resonance
0.49
Q factor
86 dB
Sensitivity
± 2 mm
Linear excursion
60 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
86.1
dB
Frequency response
65 - 8000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
65.0
Hz
Mechanical quality factor
QMS
2.10
Electrical quality factor
QES
0.64
Total quality factor
QTS
0.49
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
11
cm³
Power handling
P
30
W
Program power
Pmax
60
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
0.3
mH
VC Diameter
26
mm
Winding material
Aluminium
Magnet
Force factor
Bl
4.1
N/A
Motor constant
Bl/√RE
1.61
N/√W
Diameter
80
mm
Weight
0.28
kg
Diaphragm
Effective diameter
84
mm
Effective area
SD
55
cm²
Moving mass
MMS
4
g
Moving mass (without air load)
MMD
3.7
g
Suspensions
Stiffness
KMS
1.25
N/mm
Compliance
CMS
800
µm/N
Equivalent volume to the compliance
VAS
6
L
Mechanical resistance
RMS
0.78
N·s/m
Dimensions
Nominal diameter
4
″
105 x 105
mm
Overall size
105 x 105
mm
Baffle cutout diameter
96
mm
Overall depth
60
mm
Flange thickness
0
mm
Mounting depth
60
mm
Volume occupied by the driver (estimated)
0.18
L
Net weight
0.654
kg
Similar woofers to MONACOR SP-60/8
4″Mid-range
fS
65 Hz
SD
55 cm²
65 - 8000 Hz
QTS
0.49
xmax
2.0 mm
SPL1W
86 dB
Bl/√RE
1.6
Pmax
60 W
4″Mid-range
fS
75 Hz
SD
57 cm²
75 - 18000 Hz
QTS
0.57
xmax
1.5 mm
SPL1W
87 dB
Bl/√RE
1.57
Pmax
80 W
6″Coaxial
fS
75 Hz
SD
80 cm²
65 - 3300 Hz
QTS
0.54
xmax
3.5 mm
SPL1W
87 dB
Bl/√RE
2.56
Pmax
200 W