Eighteen Sound 12ND710 16Ω

16Ω

Mid Bass

12″ / 300 mm
Nominal diameter
53 Hz
Resonance
0.29
Q factor
99 dB
Sensitivity
± 5 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
98.7
dB
Frequency response
61 - 5500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
53.0
Hz
Mechanical quality factor
QMS
4.00
Electrical quality factor
QES
0.31
Total quality factor
QTS
0.29

Large signal parameters

Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
265
cm³
Power handling
P
450
W
Program power
Pmax
700
W

Voice Coil

Nominal impedance
Z
16
Ω
DC resistance
RE
9.4
Ω
Inductance (1kHz)
LE
0.74
mH
VC Diameter
75
mm

Magnet

Force factor
Bl
20.3
N/A
Motor constant
Bl/√RE
6.62
N/√W
Material
Neodymium

Diaphragm

Effective diameter
260
mm
Effective area
SD
530
cm²
Moving mass
MMS
41
g
Moving mass (without air load)
MMD
32.3
g
Material
Weather protected

Suspensions

Stiffness
KMS
4.55
N/mm
Compliance
CMS
220
µm/N
Equivalent volume to the compliance
VAS
85
L
Mechanical resistance
RMS
3.41
N·s/m

Dimensions

Nominal diameter
12
300
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
141
mm
Flange thickness
11
mm
Mounting depth
130
mm
Volume occupied by the driver (estimated)
2.2
L
Net weight
4.4
kg
Eighteen Sound 12ND710 16Ω Impedance
Eighteen Sound 12ND710 16Ω SPL

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