15″ / 381 mm
Nominal diameter
42 Hz
Resonance
0.22
Q factor
99 dB
Sensitivity
± 6 mm
Linear excursion
1300 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
98.6
dB
Frequency response
40 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
4.00
Electrical quality factor
QES
0.24
Total quality factor
QTS
0.22
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Maximum excursion before damage
xlim
19.5
mm
Air volume displaced at xmax
VD
540
cm³
Power handling
P
650
W
Program power
Pmax
1300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
1.65
mH
VC Diameter
89
mm
Winding height
HVC
17
mm
Magnet
Force factor
Bl
22.5
N/A
Motor constant
Bl/√RE
9.51
N/√W
Air gap height
HAG
11
mm
Diaphragm
Effective diameter
330
mm
Effective area
SD
900
cm²
Moving mass
MMS
80
g
Moving mass (without air load)
MMD
61.4
g
Suspensions
Stiffness
KMS
5.71
N/mm
Compliance
CMS
175
µm/N
Equivalent volume to the compliance
VAS
191
L
Mechanical resistance
RMS
5.28
N·s/m
Spider material
with silicon damping
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
393
mm
Baffle cutout diameter
354
mm
Overall depth
180
mm
Volume occupied by the driver
3.8
L
Net weight
5.16
kg
Similar woofers to RCF MB15N351
15″Woofer
fS
44 Hz
SD
900 cm²
40 - 3000 Hz
QTS
0.22
xmax
6.0 mm
SPL1W
99 dB
Bl/√RE
9.51
Pmax
1300 W
15″Mid Bass
fS
42 Hz
SD
860 cm²
40 - 5000 Hz
QTS
0.24
xmax
4.0 mm
SPL1W
99 dB
Bl/√RE
9.0
Pmax
1000 W
15″Woofer
fS
48 Hz
SD
855 cm²
48 - 4000 Hz
QTS
0.23
xmax
4.0 mm
SPL1W
99 dB
Bl/√RE
9.06
Pmax
600 W