12″ / 300 mm
Nominal diameter
46 Hz
Resonance
0.14
Q factor
99 dB
Sensitivity
± 3.5 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
99.1
dB
Frequency response
80 - 5500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
46.0
Hz
Mechanical quality factor
QMS
4.30
Electrical quality factor
QES
0.15
Total quality factor
QTS
0.14
Large signal parameters
Maximum linear excursion
xmax
3.5
mm
Air volume displaced at xmax
VD
186
cm³
Power handling
P
450
W
Program power
Pmax
700
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz)
LE
1.17
mH
VC Diameter
75
mm
Magnet
Force factor
Bl
24.0
N/A
Motor constant
Bl/√RE
9.88
N/√W
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
49
g
Moving mass (without air load)
MMD
40.2
g
Material
Weather protected
Suspensions
Stiffness
KMS
4.1
N/mm
Compliance
CMS
244
µm/N
Equivalent volume to the compliance
VAS
94.4
L
Mechanical resistance
RMS
3.29
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
124
mm
Flange thickness
11
mm
Mounting depth
113
mm
Volume occupied by the driver (estimated)
1.8
L
Net weight
3.9
kg
Similar speaker drivers to Eighteen Sound 12ND610
12″Woofer
fS
41 Hz
SD
531 cm²
80 - 2000 Hz
QTS
0.16
xmax
2.5 mm
SPL1W
97 dB
Bl/√RE
10
Pmax
1200 W
12″Woofer
fS
38 Hz
SD
531 cm²
45 - 1700 Hz
QTS
0.16
xmax
4.5 mm
SPL1W
97 dB
Bl/√RE
10
Pmax
1600 W
12″Woofer
fS
40 Hz
SD
522 cm²
40 - 2000 Hz
QTS
0.16
xmax
8.0 mm
SPL1W
96 dB
Bl/√RE
11
Pmax
1000 W