15″ / 380 mm
Nominal diameter
38 Hz
Resonance
0.32
Q factor
95 dB
Sensitivity
± 9.5 mm
Linear excursion
1400 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
94.8
dB
Frequency response
40 - 1500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
38.0
Hz
Mechanical quality factor
QMS
8.00
Electrical quality factor
QES
0.33
Total quality factor
QTS
0.32
Large signal parameters
Maximum linear excursion
xmax
9.5
mm
Maximum excursion before damage
xlim
16.5
mm
Air volume displaced at xmax
VD
789
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz)
LE
2.7
mH
VC Diameter
100
mm
Winding height
HVC
23.5
mm
Magnet
Force factor
Bl
23.3
N/A
Motor constant
Bl/√RE
9.59
N/√W
Air gap height
HAG
10
mm
Diaphragm
Effective diameter
325
mm
Effective area
SD
830
cm²
Moving mass
MMS
126
g
Moving mass (without air load)
MMD
109.4
g
Suspensions
Stiffness
KMS
7.52
N/mm
Compliance
CMS
133
µm/N
Equivalent volume to the compliance
VAS
128
L
Mechanical resistance
RMS
3.8
N·s/m
Dimensions
Nominal diameter
15
″
380
mm
Volume occupied by the driver (estimated)
4.7
L
Net weight
10.4
kg
Similar subwoofers to Beyma 15G40
18″Subwoofer
fS
37 Hz
SD
1225 cm²
30 - 1000 Hz
QTS
0.31
xmax
14.8 mm
SPL1W
95 dB
Bl/√RE
15
Pmax
3600 W
15″Woofer
fS
36 Hz
SD
855 cm²
30 - 500 Hz
QTS
0.31
xmax
12.0 mm
SPL1W
95 dB
Bl/√RE
9.69
Pmax
2000 W
18″Woofer
fS
36 Hz
SD
1110 cm²
36 - 1000 Hz
QTS
0.31
xmax
9.0 mm
SPL1W
95 dB
Bl/√RE
12
Pmax
2000 W