Skar Audio MA-8 D2

2x2Ω
2x4Ω

Subwoofer

8″ / 203 mm
Nominal diameter
63 Hz
Resonance
0.58
Q factor
86 dB
Sensitivity
± 12.5 mm
Linear excursion
800 W
Program Power
Discontinued
Skar Audio MA-8 D2 SubwooferSkar Audio MA-8 D2 SubwooferSkar Audio MA-8 D2 Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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
Sensitivity (1W, 1m, infinite baffle)
SPL1W
85.6
dB
Frequency response
50 - 500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
63.0
Hz
Mechanical quality factor
QMS
5.30
Electrical quality factor
QES
0.65
Total quality factor
QTS
0.58

Large signal parameters

Maximum linear excursion
xmax
12.5
mm
Air volume displaced at xmax
VD
329
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.9
Ω
Inductance (1kHz, in series, estimated)
LE
0.93
mH
VC Diameter
51
mm

Magnet

Force factor (in series)
Bl
15.7
N/A
Motor constant
Bl/√RE
7.95
N/√W
Diameter
160
mm

Diaphragm

Effective diameter
183
mm
Effective area
SD
263
cm²
Moving mass
MMS
106.4
g
Moving mass (without air load)
MMD
103.6
g

Suspensions

Stiffness
KMS
16.67
N/mm
Compliance
CMS
60
µm/N
Equivalent volume to the compliance
VAS
5.9
L
Mechanical resistance
RMS
7.95
N·s/m

Dimensions

Nominal diameter
8
″
203
mm
Baffle cutout diameter
188
mm
Mounting depth
145
mm
Volume occupied by the driver
2.8
L
Impedance
Step response
Tone Burst

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