ETON 4-512/C8/25RP

Mid-range

4″ / 122 mm
Nominal diameter
78 Hz
Resonance
0.32
Q factor
89 dB
Sensitivity
± 2 mm
Linear excursion
80 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
88.9
dB
Frequency response
78 - 5000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
78.0
Hz
Mechanical quality factor
QMS
6.65
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.32

Large signal parameters

Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
11
cm³
Power handling
P
40
W
Program power
Pmax
80
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.35
mH
VC Diameter
25
mm
Winding material
Kapton

Magnet

Force factor
Bl
6.0
N/A
Motor constant
Bl/√RE
2.49
N/√W
Diameter
90
mm

Diaphragm

Effective diameter
84
mm
Effective area
SD
55
cm²
Moving mass
MMS
4.5
g
Moving mass (without air load)
MMD
4.2
g

Suspensions

Stiffness
KMS
1.16
N/mm
Compliance
CMS
860
µm/N
Equivalent volume to the compliance
VAS
3.7
L
Mechanical resistance
RMS
0.33
N·s/m

Dimensions

Nominal diameter
4
122
mm
Overall diameter
122
mm
Baffle cutout diameter
96
mm
Overall depth
66
mm
Flange thickness
6
mm
Mounting depth
60
mm
Volume occupied by the driver (estimated)
0.32
L
Net weight
1.23
kg
ETON 4-512/C8/25RP Impedance
ETON 4-512/C8/25RP SPL
ETON 4-512/C8/25RP Dimensions

Export this driver to a simulation software:

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