Eighteen Sound 6ND410

8Ω
16Ω

Mid-range

6.5″ / 152 mm
Nominal diameter
120 Hz
Resonance
0.24
Q factor
97 dB
Sensitivity
± 2 mm
Linear excursion
240 W
Program Power
Eighteen Sound 6ND410 Mid-range
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
96.8
dB
Frequency response
200 - 8000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
120
Hz
Mechanical quality factor
QMS
2.20
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.24

Large signal parameters

Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
29
cm³
Power handling
P
180
W
Program power
Pmax
240
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz)
LE
0.67
mH
VC Diameter
44
mm
Winding material
Aluminum

Magnet

Force factor
Bl
11.6
N/A
Motor constant
Bl/√RE
4.78
N/√W
Material
Neodymium

Diaphragm

Effective diameter
135
mm
Effective area
SD
143
cm²
Moving mass
MMS
8.2
g
Moving mass (without air load)
MMD
7
g
Material
Weather protected

Suspensions

Stiffness
KMS
4.65
N/mm
Compliance
CMS
215
µm/N
Equivalent volume to the compliance
VAS
6.2
L
Mechanical resistance
RMS
2.81
N·s/m

Dimensions

Nominal diameter
6.5
″
152
mm
Overall diameter
162
mm
Baffle cutout diameter
148
mm
Overall depth
60
mm
Flange thickness
9
mm
Mounting depth
51
mm
Volume occupied by the driver (estimated)
0.36
L
Net weight
1.25
kg
Impedance
SPL
Eighteen Sound 6ND410 Impedance
Eighteen Sound 6ND410 SPL
Eighteen Sound 6ND410 Dimensions
DatasheetDatasheet

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