Scan-Speak Discovery 12W/8524G00

Mid Bass

4.5″ / 120 mm
Nominal diameter
52 Hz
Resonance
0.32
Q factor
87 dB
Sensitivity
± 3 mm
Linear excursion
70 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
86.9
dB
Frequency response
52 - 5000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
52.0
Hz
Mechanical quality factor
QMS
3.42
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.32

Large signal parameters

Maximum linear excursion
xmax
3.0
mm
Maximum excursion before damage
xlim
9.0
mm
Air volume displaced at xmax
VD
18
cm³
Power handling
P
40
W
Program power
Pmax
70
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz, estimated)
LE
0.22
mH
VC Diameter
25
mm
Winding height
HVC
10
mm

Magnet

Force factor
Bl
5.4
N/A
Motor constant
Bl/√RE
2.26
N/√W
Air gap height
HAG
4
mm

Diaphragm

Effective diameter
86
mm
Effective area
SD
59
cm²
Moving mass
MMS
5.6
g
Moving mass (without air load)
MMD
5.2
g
Material
Coated Fibre Glass

Suspensions

Stiffness
KMS
0.6
N/mm
Compliance
CMS
1670
µm/N
Equivalent volume to the compliance
VAS
8.2
L
Mechanical resistance
RMS
0.54
N·s/m
Surround material
SBR Rubber

Dimensions

Nominal diameter
4.5
120
mm
Volume occupied by the driver
0.12
L
Net weight
1.0
kg
Frame material
Die cast Aluminium
Scan-Speak 12W/8524G00 SPL & Impedance
Scan-Speak 12W/8524G00 Dimensions

Export this driver to a simulation software:

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SD
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