8″ / 203 mm
Nominal diameter
63 Hz
Resonance
0.58
Q factor
86 dB
Sensitivity
± 12.5 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
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
Similar subwoofers to Skar Audio MA-8 D2
8″Subwoofer
fS
51 Hz
SD
198 cm²
50 - 1000 Hz
QTS
0.64
xmax
7.0 mm
SPL1W
83 dB
Bl/√RE
5.18
Pmax
300 W
8″Subwoofer
fS
52 Hz
SD
216 cm²
50 - 500 Hz
QTS
0.49
xmax
9.0 mm
SPL1W
86 dB
Bl/√RE
6.43
Pmax
700 W
8″Shallow Subwoofer
fS
49 Hz
SD
214 cm²
QTS
0.53
xmax
4.0 mm
SPL1W
87 dB
Bl/√RE
5.02
Pmax
400 W