8″ / 215 mm
Nominal diameter
65 Hz
Resonance
0.57
Q factor
97 dB
Sensitivity
± 2.9 mm
Linear excursion
70 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
97.0
dB
Frequency response
45 - 18000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
65.0
Hz
Mechanical quality factor
QMS
8.00
Electrical quality factor
QES
0.61
Total quality factor
QTS
0.57
Large signal parameters
Maximum linear excursion
xmax
2.9
mm
Maximum excursion before damage
xlim
6.5
mm
Air volume displaced at xmax
VD
65
cm³
Power handling
P
35
W
Program power
Pmax
70
W
Voice Coil
Nominal impedance
Z
6
Ω
DC resistance
RE
4.1
Ω
Inductance (1kHz)
LE
0.18
mH
VC Diameter
35
mm
Magnet
Flux density
B
1.4
T
Force factor
Bl
4.64
N/A
Motor constant
Bl/√RE
2.29
N/√W
Diaphragm
Effective diameter
168
mm
Effective area
SD
222
cm²
Moving mass
MMS
8.1
g
Moving mass (without air load)
MMD
5.6
g
Suspensions
Stiffness
KMS
1.33
N/mm
Compliance
CMS
750
µm/N
Equivalent volume to the compliance
VAS
52
L
Mechanical resistance
RMS
0.41
N·s/m
Dimensions
Nominal diameter
8
″
215
mm
Overall diameter
224
mm
Baffle cutout diameter
212
mm
Overall depth
157
mm
Volume occupied by the driver (estimated)
2.0
L
Net weight
4.8
kg
Similar woofers to SUPRAVOX 215-2000 mk2
6.5″Full-range
fS
65 Hz
SD
165 cm²
60 - 20000 Hz
QTS
0.65
SPL1W
96 dB
Bl/√RE
1.69
Pmax
70 W
10″Woofer
fS
68 Hz
SD
370 cm²
70 - 700 Hz
QTS
0.62
xmax
2.2 mm
SPL1W
94 dB
Bl/√RE
4.05
Pmax
300 W
10″Woofer
fS
55 Hz
SD
360 cm²
50 - 4500 Hz
QTS
0.49
xmax
4.6 mm
SPL1W
94 dB
Bl/√RE
4.04
Pmax
300 W