6.5″ / 152 mm
Nominal diameter
86 Hz
Resonance
0.35
Q factor
91 dB
Sensitivity
± 4.9 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.5
dB
Frequency response
75 - 8000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
86.0
Hz
Mechanical quality factor
QMS
5.00
Electrical quality factor
QES
0.38
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
4.9
mm
Air volume displaced at xmax
VD
65
cm³
Power handling
P
320
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
0.22
mH
VC Diameter
51
mm
Winding height
HVC
14
mm
Magnet
Force factor
Bl
11.6
N/A
Motor constant
Bl/√RE
5.14
N/√W
Air gap height
HAG
8.5
mm
Diaphragm
Effective diameter
130
mm
Effective area
SD
133
cm²
Moving mass
MMS
19
g
Moving mass (without air load)
MMD
17.9
g
Material
Weather protected
Suspensions
Stiffness
KMS
5.56
N/mm
Compliance
CMS
180
µm/N
Equivalent volume to the compliance
VAS
4.6
L
Mechanical resistance
RMS
2.05
N·s/m
Dimensions
Nominal diameter
6.5
″
152
mm
Overall diameter
162
mm
Baffle cutout diameter
148
mm
Overall depth
108
mm
Flange thickness
14
mm
Mounting depth
94
mm
Volume occupied by the driver (estimated)
0.52
L
Net weight
1.2
kg
Similar woofers to Eighteen Sound 6NTLW2000
6.5″Woofer
fS
86 Hz
SD
133 cm²
100 - 7300 Hz
QTS
0.38
xmax
4.9 mm
SPL1W
90 dB
Bl/√RE
4.7
Pmax
600 W
5″Woofer
fS
80 Hz
SD
95 cm²
80 - 7000 Hz
QTS
0.36
xmax
3.5 mm
SPL1W
90 dB
Bl/√RE
3.92
Pmax
180 W
5″Coaxial
fS
100 Hz
SD
85 cm²
100 - 18000 Hz
QTS
0.41
xmax
5.1 mm
SPL1W
91 dB
Bl/√RE
3.29
Pmax
240 W