Eighteen Sound 8NW650 16Ω

16Ω

Woofer

8″ / 200 mm
Nominal diameter
62 Hz
Resonance
0.25
Q factor
94 dB
Sensitivity
± 5.5 mm
Linear excursion
600 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
93.9
dB
Frequency response
55 - 6300
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
62.0
Hz
Mechanical quality factor
QMS
4.13
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.25

Large signal parameters

Maximum linear excursion
xmax
5.5
mm
Air volume displaced at xmax
VD
127
cm³
Power handling
P
300
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
16
Ω
DC resistance
RE
9.9
Ω
Inductance (1kHz)
LE
1.14
mH
VC Diameter
65
mm

Magnet

Force factor
Bl
19.1
N/A
Motor constant
Bl/√RE
6.07
N/√W
Material
Neodymium

Diaphragm

Effective diameter
171
mm
Effective area
SD
230
cm²
Moving mass
MMS
25
g
Moving mass (without air load)
MMD
22.5
g
Material
Water,UV repellent

Suspensions

Stiffness
KMS
3.79
N/mm
Compliance
CMS
264
µm/N
Equivalent volume to the compliance
VAS
19
L
Mechanical resistance
RMS
2.36
N·s/m

Dimensions

Nominal diameter
8
200
mm
Overall diameter
210
mm
Baffle cutout diameter
185
mm
Overall depth
111
mm
Flange thickness
8
mm
Mounting depth
103
mm
Volume occupied by the driver (estimated)
0.97
L
Net weight
2.4
kg
Eighteen Sound 8NW650 16Ω Impedance
Eighteen Sound 8NW650 16Ω SPL
Eighteen Sound 8NW650 16Ω Dimensions

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