Dayton Audio ND105-8

Mid Bass

4″ / 105 mm
Nominal diameter
67 Hz
Resonance
0.66
Q factor
83 dB
Sensitivity
± 4 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
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
83.1
dB
Frequency response
60 - 10000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
66.6
Hz
Mechanical quality factor
QMS
5.57
Electrical quality factor
QES
0.74
Total quality factor
QTS
0.66

Large signal parameters

Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
21
cm³
Power handling
P
30
W
Program power
Pmax
60
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.7
Ω
Inductance (1kHz)
LE
1.25
mH
VC Diameter
25
mm
Winding material
Copper
Former material
Kapton® / Polyimide

Magnet

Force factor
Bl
5.44
N/A
Motor constant
Bl/√RE
1.96
N/√W
Material
Neodymium

Diaphragm

Effective diameter
81
mm
Effective area
SD
52
cm²
Moving mass
MMS
6.8
g
Moving mass (without air load)
MMD
6.5
g
Material
Black Anodized Aluminum

Suspensions

Stiffness
KMS
1.19
N/mm
Compliance
CMS
840
µm/N
Equivalent volume to the compliance
VAS
2.97
L
Mechanical resistance
RMS
0.51
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
4
105
mm
Overall diameter
105
mm
Baffle cutout diameter
93
mm
Overall depth
67
mm
Volume occupied by the driver (estimated)
0.2
L
Frame material
Steel
Dayton Audio ND105-8 Impedance
Dayton Audio ND105-8 SPL
Dayton Audio ND105-8 Dimensions

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