6.5″ / 165 mm
Nominal diameter
44 Hz
Resonance
0.32
Q factor
88 dB
Sensitivity
± 7.02 mm
Linear excursion
160 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
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.4
dB
Frequency response
40 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
44.0
Hz
Mechanical quality factor
QMS
8.43
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.32
Large signal parameters
Maximum linear excursion
xmax
7.02
mm
Air volume displaced at xmax
VD
95
cm³
Power handling
P
80
W
Program power
Pmax
160
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
0.21
mH
VC Diameter
38
mm
Magnet
Force factor
Bl
6.95
N/A
Motor constant
Bl/√RE
3.89
N/√W
Air gap height
HAG
6
mm
Diaphragm
Effective diameter
131
mm
Effective area
SD
135
cm²
Moving mass
MMS
18.3
g
Moving mass (without air load)
MMD
17.1
g
Material
Patented PentaCut
Suspensions
Stiffness
KMS
1.43
N/mm
Compliance
CMS
700
µm/N
Equivalent volume to the compliance
VAS
18.1
L
Mechanical resistance
RMS
0.6
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Volume occupied by the driver (estimated)
0.32
L
Net weight
0.82
kg
Frame material
Cast Aluminium
Similar woofers to Peerless NE180W-04
6.5″Woofer
fS
46 Hz
SD
133 cm²
QTS
0.32
xmax
5.0 mm
SPL1W
89 dB
Bl/√RE
3.26
Pmax
180 W
7″Woofer
fS
46 Hz
SD
127 cm²
45 - 8000 Hz
QTS
0.34
xmax
6.0 mm
SPL1W
88 dB
Bl/√RE
2.85
Pmax
90 W
6.5″Woofer
fS
42 Hz
SD
125 cm²
45 - 2500 Hz
QTS
0.27
xmax
4.5 mm
SPL1W
89 dB
Bl/√RE
3.53