VOLT SB220.1

Subwoofer

8″ / 220 mm
Nominal diameter
39 Hz
Resonance
0.53
Q factor
86 dB
Sensitivity
± 14 mm
Linear excursion
300 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
Discard
Apply
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.2
dB
Frequency response
25 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
3.95
Electrical quality factor
QES
0.61
Total quality factor
QTS
0.53

Large signal parameters

Maximum linear excursion
xmax
14.0
mm
Maximum excursion before damage
xlim
15.0
mm
Air volume displaced at xmax
VD
318
cm³
Power handling
P
150
W
Program power
Pmax
300
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
1.6
mH
VC Diameter
38
mm
Winding material
Copper

Magnet

Force factor
Bl
9.5
N/A
Motor constant
Bl/√RE
4.21
N/√W
Weight
3.6
kg

Diaphragm

Effective diameter
170
mm
Effective area
SD
227
cm²
Moving mass
MMS
44
g
Moving mass (without air load)
MMD
41.3
g

Suspensions

Stiffness
KMS
2.63
N/mm
Compliance
CMS
380
µm/N
Equivalent volume to the compliance
VAS
27
L
Mechanical resistance
RMS
2.73
N·s/m

Dimensions

Nominal diameter
8
220
mm
Overall diameter
235
mm
Baffle cutout diameter
200
mm
Overall depth
118
mm
Flange thickness
9
mm
Mounting depth
109
mm
Volume occupied by the driver
0.8
L
Net weight
4.1
kg
Frame material
Diecast Aluminium
VOLT SB220.1 SPL & Impedance
VOLT SB220.1 Dimensions

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