PHL audio 1680NdM-10

Coaxial

6.5″ / 170 mm
Nominal diameter
125 Hz
Resonance
0.31
Q factor
94 dB
Sensitivity
± 2.5 mm
Linear excursion
500 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
93.7
dB
Frequency response
300 - 5000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
125
Hz
Mechanical quality factor
QMS
4.08
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.31

Large signal parameters

Maximum linear excursion
xmax
2.5
mm
Maximum excursion before damage
xlim
3.0
mm
Air volume displaced at xmax
VD
32
cm³
Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
0.75
mH
VC Diameter
51
mm
Winding height
HVC
11
mm

Magnet

Force factor
Bl
12.5
N/A
Motor constant
Bl/√RE
5.48
N/√W
Air gap height
HAG
8
mm
Diameter
98
mm
Material
Neodymium

Diaphragm

Effective diameter
128
mm
Effective area
SD
129
cm²
Moving mass
MMS
13
g
Moving mass (without air load)
MMD
11.9
g

Suspensions

Stiffness
KMS
8.33
N/mm
Compliance
CMS
120
µm/N
Equivalent volume to the compliance
VAS
2.9
L
Mechanical resistance
RMS
2.5
N·s/m

Dimensions

Nominal diameter
6.5
170
mm
Overall diameter
163
mm
Baffle cutout diameter
146
mm
Overall depth
71
mm
Flange thickness
8
mm
Mounting depth
63
mm
Volume occupied by the driver
0.4
L
Net weight
1.7
kg
PHL audio 1680NdM-10 Dimensions

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