Eminence DELTA-12A

8Ω
16Ω

Mid Bass

12″ / 305 mm
Nominal diameter
55 Hz
Resonance
0.43
Q factor
96 dB
Sensitivity
± 2.4 mm
Linear excursion
800 W
Program Power
Eminence DELTA-12A Mid BassEminence DELTA-12A Mid BassEminence DELTA-12A Mid Bass
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
96.2
dB
Frequency response
54 - 5000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
55.0
Hz
Mechanical quality factor
QMS
5.27
Electrical quality factor
QES
0.46
Total quality factor
QTS
0.43

Large signal parameters

Maximum linear excursion
xmax
2.4
mm
Maximum excursion before damage
xlim
9.9
mm
Air volume displaced at xmax
VD
125
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
0.74
mH
VC Diameter
64
mm
Winding material
Aluminum
Former material
Polyimide

Magnet

Force factor
Bl
13.5
N/A
Motor constant
Bl/√RE
5.38
N/√W
Air gap height
HAG
9.5
mm
Weight
1.588
kg
Material
Ferrite

Diaphragm

Effective diameter
257
mm
Effective area
SD
520
cm²
Moving mass
MMS
39
g
Moving mass (without air load)
MMD
30.7
g
Material
Paper

Suspensions

Stiffness
KMS
4.76
N/mm
Compliance
CMS
210
µm/N
Equivalent volume to the compliance
VAS
81.3
L
Mechanical resistance
RMS
2.56
N·s/m
Surround material
Cloth

Dimensions

Nominal diameter
12
″
305
mm
Overall diameter
306
mm
Baffle cutout diameter
281
mm
Overall depth
136
mm
Volume occupied by the driver
2.25
L
Net weight
5.17
kg
Frame material
Pressed steel
SPL & Impedance
Eminence DELTA-12A SPL & Impedance
DatasheetDatasheet

Export this driver to a simulation software:

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