MONACOR SP-308CX

Coaxial

8″ / 208 mm
Nominal diameter
80 Hz
Resonance
0.36
Q factor
95 dB
Sensitivity
± 2.5 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
Sensitivity (1W, 1m, infinite baffle)
SPL1W
95.1
dB
Frequency response
80 - 22000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
80.0
Hz
Mechanical quality factor
QMS
2.21
Electrical quality factor
QES
0.43
Total quality factor
QTS
0.36

Large signal parameters

Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
55
cm³
Power handling
P
150
W
Program power
Pmax
300
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.58
mH
VC Diameter
50
mm
Winding material
Polyamide

Magnet

Force factor
Bl
12.1
N/A
Motor constant
Bl/√RE
5.02
N/√W
Diameter
126
mm
Weight
1.4
kg

Diaphragm

Effective diameter
168
mm
Effective area
SD
221
cm²
Moving mass
MMS
17
g
Moving mass (without air load)
MMD
14.6
g

Suspensions

Stiffness
KMS
4.55
N/mm
Compliance
CMS
220
µm/N
Equivalent volume to the compliance
VAS
15.4
L
Mechanical resistance
RMS
3.87
N·s/m

Dimensions

Nominal diameter
8
208 x 208
mm
Overall size
208 x 208
mm
Baffle cutout diameter
184
mm
Overall depth
169
mm
Flange thickness
10
mm
Mounting depth
159
mm
Volume occupied by the driver (estimated)
2.0
L
Net weight
4.8
kg
MONACOR SP-308CX SPL & Impedance
MONACOR SP-308CX Dimensions

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