Eighteen Sound 8NTLW2000 16Ω

16Ω

Woofer

8″ / 210 mm
Nominal diameter
74 Hz
Resonance
0.26
Q factor
94 dB
Sensitivity
± 4.4 mm
Linear excursion
700 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
94.1
dB
Frequency response
60 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
74.0
Hz
Mechanical quality factor
QMS
12.90
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26

Large signal parameters

Maximum linear excursion
xmax
4.4
mm
Air volume displaced at xmax
VD
100
cm³
Power handling
P
350
W
Program power
Pmax
700
W

Voice Coil

Nominal impedance
Z
16
Ω
DC resistance
RE
11.1
Ω
Inductance (1kHz)
LE
1.34
mH
VC Diameter
51
mm
Winding height
HVC
13
mm
Winding material
Aluminum

Magnet

Force factor
Bl
22.4
N/A
Motor constant
Bl/√RE
6.72
N/√W
Air gap height
HAG
8.5
mm
Material
Neodymium

Diaphragm

Effective diameter
170
mm
Effective area
SD
227
cm²
Moving mass
MMS
27
g
Moving mass (without air load)
MMD
24.5
g
Material
Weather protected

Suspensions

Stiffness
KMS
5.85
N/mm
Compliance
CMS
171
µm/N
Equivalent volume to the compliance
VAS
11.3
L
Mechanical resistance
RMS
0.97
N·s/m

Dimensions

Nominal diameter
8
210
mm
Overall diameter
210
mm
Baffle cutout diameter
186
mm
Overall depth
121
mm
Flange thickness
9
mm
Mounting depth
112
mm
Volume occupied by the driver (estimated)
0.76
L
Net weight
1.5
kg
Eighteen Sound 8NTLW2000 16Ω Impedance
Eighteen Sound 8NTLW2000 16Ω SPL
Eighteen Sound 8NTLW2000 16Ω Dimensions

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