Dayton Audio ND90-8

Full-range

3.5″ / 104 mm
Nominal diameter
71 Hz
Resonance
0.65
Q factor
81 dB
Sensitivity
± 4 mm
Linear excursion
40 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
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Specifications

Sensitivity (1w, 1m, infinite baffle)
SPL1W
81.1
dB
Frequency response
80 - 15000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
70.7
Hz
Mechanical quality factor
QMS
4.71
Electrical quality factor
QES
0.75
Total quality factor
QTS
0.65

Large signal parameters

Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
13
cm³
Power handling
P
20
W
Program power
Pmax
40
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.5
Ω
Inductance (1kHz)
LE
1.08
mH
VC Diameter
19
mm
Winding material
Copper
Former material
Kapton® / Polyimide

Magnet

Force factor
Bl
4.3
N/A
Motor constant
Bl/√RE
1.57
N/√W
Material
Neodymium

Diaphragm

Effective diameter
63
mm
Effective area
SD
31
cm²
Moving mass
MMS
4.2
g
Moving mass (without air load)
MMD
4
g
Material
Black Anodized Aluminum

Suspensions

Stiffness
KMS
0.82
N/mm
Compliance
CMS
1220
µm/N
Equivalent volume to the compliance
VAS
1.77
L
Mechanical resistance
RMS
0.4
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
3.5
104
mm
Overall diameter
104
mm
Baffle cutout diameter
85
mm
Overall depth
61
mm
Volume occupied by the driver (estimated)
0.18
L
Frame material
Steel
Dayton Audio ND90-8 Impedance
Dayton Audio ND90-8 SPL
Dayton Audio ND90-8 Dimensions

Export this driver to a simulation software:

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