10″ / 260 mm
Nominal diameter
70 Hz
Resonance
0.33
Q factor
97 dB
Sensitivity
± 2.5 mm
Linear excursion
320 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
97.1
dB
Frequency response
65 - 6100
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
70.0
Hz
Mechanical quality factor
QMS
3.50
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
88
cm³
Power handling
P
250
W
Program power
Pmax
320
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
1.05
mH
VC Diameter
50
mm
Magnet
Force factor
Bl
12.0
N/A
Motor constant
Bl/√RE
5.31
N/√W
Diaphragm
Effective diameter
211
mm
Effective area
SD
350
cm²
Moving mass
MMS
21
g
Moving mass (without air load)
MMD
16.3
g
Material
Weather protected
Suspensions
Stiffness
KMS
4.07
N/mm
Compliance
CMS
246
µm/N
Equivalent volume to the compliance
VAS
41
L
Mechanical resistance
RMS
2.64
N·s/m
Dimensions
Nominal diameter
10
″
260
mm
Overall diameter
260
mm
Baffle cutout diameter
232
mm
Overall depth
121
mm
Flange thickness
14
mm
Mounting depth
107
mm
Volume occupied by the driver (estimated)
1.8
L
Net weight
4.7
kg
Similar woofers to Eighteen Sound 10MB400
10″Woofer
fS
76 Hz
SD
400 cm²
55 - 3000 Hz
QTS
0.34
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
6.53
Pmax
600 W
12″Low frequency
fS
65 Hz
SD
531 cm²
40 - 4000 Hz
QTS
0.32
xmax
5.5 mm
SPL1W
96 dB
Bl/√RE
7.86
Pmax
700 W
12″Coaxial
fS
60 Hz
SD
500 cm²
50 - 20000 Hz
QTS
0.26
xmax
5.0 mm
SPL1W
98 dB
Bl/√RE
7.67
Pmax
600 W