Eminence DELTA-15A

16Ω

Mid Bass

15″ / 381 mm
Nominal diameter
40 Hz
Resonance
0.53
Q factor
98 dB
Sensitivity
± 2.7 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
97.7
dB
Frequency response
48 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
8.05
Electrical quality factor
QES
0.57
Total quality factor
QTS
0.53

Large signal parameters

Maximum linear excursion
xmax
2.7
mm
Maximum excursion before damage
xlim
11.1
mm
Air volume displaced at xmax
VD
233
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.3
Ω
Inductance (1kHz)
LE
0.64
mH
VC Diameter
64
mm
Winding material
Aluminum
Former material
Polyimide

Magnet

Force factor
Bl
13.2
N/A
Motor constant
Bl/√RE
5.26
N/√W
Air gap height
HAG
9.5
mm
Weight
1.588
kg
Material
Ferrite

Diaphragm

Effective diameter
332
mm
Effective area
SD
865
cm²
Moving mass
MMS
62
g
Moving mass (without air load)
MMD
44.5
g
Material
Paper

Suspensions

Stiffness
KMS
3.85
N/mm
Compliance
CMS
260
µm/N
Equivalent volume to the compliance
VAS
271
L
Mechanical resistance
RMS
1.94
N·s/m
Surround material
Cloth

Dimensions

Nominal diameter
15
381
mm
Overall diameter
385
mm
Baffle cutout diameter
352
mm
Overall depth
154
mm
Volume occupied by the driver
3.62
L
Net weight
5.58
kg
Frame material
Pressed steel
Eminence DELTA-15A SPL & Impedance

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