Eminence DELTA 15LF-4

4Ω
8Ω

Bass Guitar Speaker

15″ / 381 mm
Nominal diameter
40 Hz
Resonance
0.49
Q factor
96 dB
Sensitivity
± 5.97 mm
Linear excursion
1200 W
Program Power
Eminence DELTA 15LF-4 Bass Guitar SpeakerEminence DELTA 15LF-4 Bass Guitar SpeakerEminence DELTA 15LF-4 Bass Guitar Speaker
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

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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
95.6
dB
Frequency response
40 - 2200
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
6.22
Electrical quality factor
QES
0.53
Total quality factor
QTS
0.49

Large signal parameters

Maximum linear excursion
xmax
5.97
mm
Maximum excursion before damage
xlim
16.5
mm
Air volume displaced at xmax
VD
521
cm³
Power handling
P
600
W
Program power
Pmax
1200
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.4
Ω
Inductance (1kHz)
LE
0.76
mH
VC Diameter
64
mm
Winding material
Copper
Former material
Polyimide

Magnet

Force factor
Bl
10.32
N/A
Motor constant
Bl/√RE
5.62
N/√W
Air gap height
HAG
9.5
mm
Weight
1.588
kg
Material
Ferrite

Diaphragm

Effective diameter
333
mm
Effective area
SD
873
cm²
Moving mass
MMS
66
g
Moving mass (without air load)
MMD
48.3
g
Material
Paper

Suspensions

Stiffness
KMS
4.17
N/mm
Compliance
CMS
240
µm/N
Equivalent volume to the compliance
VAS
254
L
Mechanical resistance
RMS
2.67
N·s/m
Surround material
Cloth

Dimensions

Nominal diameter
15
″
381
mm
Overall diameter
385
mm
Baffle cutout diameter
352
mm
Overall depth
160
mm
Volume occupied by the driver
3.62
L
Net weight
5.81
kg
Frame material
Pressed steel
SPL & Impedance
Eminence DELTA 15LF-4 SPL & Impedance
DatasheetDatasheet

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