8″ / 200 mm
Nominal diameter
62 Hz
Resonance
0.25
Q factor
94 dB
Sensitivity
± 5.5 mm
Linear excursion
600 W
Program Power
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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
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Export this driver to a simulation software:
WinISD
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QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to Eighteen Sound 8NW650 16Ω
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8″Woofer
fS
63 Hz
SD
230 cm²
55 - 6300 Hz
QTS
0.25
xmax
5.5 mm
SPL1W
94 dB
Bl/√RE
6.15
Pmax
600 W
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8″Mid Bass
fS
68 Hz
SD
220 cm²
70 - 4000 Hz
QTS
0.27
xmax
6.0 mm
SPL1W
94 dB
Bl/√RE
5.63
Pmax
400 W
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10″Woofer
fS
59 Hz
SD
320 cm²
60 - 2500 Hz
QTS
0.26
xmax
6.0 mm
SPL1W
94 dB
Bl/√RE
8.03
Pmax
600 W