Eighteen Sound 15MB650

Subwoofer

15″ / 380 mm
Nominal diameter
40 Hz
Resonance
0.26
Q factor
98 dB
Sensitivity
± 4 mm
Linear excursion
600 W
Program Power
Eighteen Sound 15MB650 Subwoofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
98.1
dB
Frequency response
50 - 4800
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
3.95
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26

Large signal parameters

Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
360
cm³
Power handling
P
400
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
1.36
mH
VC Diameter
75
mm
Winding material
Copper

Magnet

Force factor
Bl
20.0
N/A
Motor constant
Bl/√RE
8.53
N/√W
Material
Ferrite

Diaphragm

Effective diameter
339
mm
Effective area
SD
900
cm²
Moving mass
MMS
77
g
Moving mass (without air load)
MMD
58.7
g
Material
Weather protected

Suspensions

Stiffness
KMS
4.85
N/mm
Compliance
CMS
206
µm/N
Equivalent volume to the compliance
VAS
210
L
Mechanical resistance
RMS
4.9
N·s/m

Dimensions

Nominal diameter
15
″
380
mm
Overall diameter
387
mm
Baffle cutout diameter
353
mm
Overall depth
167
mm
Flange thickness
19
mm
Mounting depth
148
mm
Volume occupied by the driver (estimated)
4.2
L
Net weight
8.3
kg
Impedance
SPL
Eighteen Sound 15MB650 Impedance
Eighteen Sound 15MB650 SPL
Eighteen Sound 15MB650 Dimensions
DatasheetDatasheet

Export this driver to a simulation software:

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