15″ / 381 mm
Nominal diameter
42 Hz
Resonance
0.4
Q factor
98 dB
Sensitivity
± 4.3 mm
Linear excursion
800 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
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.1
dB
Frequency response
54 - 4200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
4.73
Electrical quality factor
QES
0.44
Total quality factor
QTS
0.40
Large signal parameters
Maximum linear excursion
xmax
4.3
mm
Maximum excursion before damage
xlim
13.7
mm
Air volume displaced at xmax
VD
368
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
0.83
mH
VC Diameter
64
mm
Magnet
Force factor
Bl
14.5
N/A
Motor constant
Bl/√RE
6.07
N/√W
Air gap height
HAG
9.5
mm
Weight
2.268
kg
Diaphragm
Effective diameter
330
mm
Effective area
SD
856
cm²
Moving mass
MMS
61
g
Moving mass (without air load)
MMD
43.5
g
Suspensions
Stiffness
KMS
4.17
N/mm
Compliance
CMS
240
µm/N
Equivalent volume to the compliance
VAS
244
L
Mechanical resistance
RMS
3.4
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
389
mm
Baffle cutout diameter
356
mm
Overall depth
154
mm
Volume occupied by the driver
3.92
L
Net weight
7.71
kg
Frame material
Die-cast aluminum
Similar subwoofers to Eminence DELTA PRO-15A
15″Low frequency
fS
40 Hz
SD
860 cm²
30 - 4000 Hz
QTS
0.42
xmax
6.0 mm
SPL1W
97 dB
Bl/√RE
6.29
Pmax
800 W
15″Woofer
fS
40 Hz
SD
855 cm²
40 - 3000 Hz
QTS
0.40
xmax
4.0 mm
SPL1W
96 dB
Bl/√RE
6.77
Pmax
500 W
15″Subwoofer
fS
43 Hz
SD
850 cm²
45 - 4800 Hz
QTS
0.35
xmax
4.5 mm
SPL1W
97 dB
Bl/√RE
6.75
Pmax
600 W