HELIX COMPOSE CB C690.2-S3
2 way
6x9″/ 160x230 mm
Nominal size
56 Hz
Resonance
0.54
Q factor
90 dB
Sensitivity
± 2 mm
Linear excursion
150 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
89.7
dB
Frequency response
50 - 22000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
56.0
Hz
Mechanical quality factor
QMS
3.73
Electrical quality factor
QES
0.63
Total quality factor
QTS
0.54
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
41
cm³
Power handling
P
100
W
Program power
Pmax
150
W
Voice Coil
Nominal impedance
Z
3
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz, estimated)
LE
0.26
mH
VC Diameter
25
mm
Winding height
HVC
9
mm
Magnet
Force factor
Bl
5.7
N/A
Motor constant
Bl/√RE
3.24
N/√W
Diaphragm
Effective diameter
162
mm
Effective area
SD
205
cm²
Moving mass
MMS
19.1
g
Moving mass (without air load)
MMD
17.4
g
Suspensions
Stiffness
KMS
2.38
N/mm
Compliance
CMS
420
µm/N
Equivalent volume to the compliance
VAS
24.7
L
Mechanical resistance
RMS
1.81
N·s/m
Dimensions
Nominal size
6 x 9
″
160 x 230
mm
Overall size
164 x 235
mm
Mounting baffle cutout
151 x 218
mm
Mounting depth
75
mm
Volume occupied by the driver (estimated)
0.49
L
Similar woofers to HELIX CB C690.2-S3
6.5″Mid Bass
fS
56 Hz
SD
201 cm²
QTS
0.54
SPL1W
90 dB
Bl/√RE
3.58
Pmax
150 W
8″Woofer
fS
55 Hz
SD
210 cm²
70 - 9000 Hz
QTS
0.48
xmax
3.0 mm
SPL1W
91 dB
Bl/√RE
3.73
Pmax
500 W
6 x 9″3 Way
fS
60 Hz
SD
232 cm²
35 - 24000 Hz
QTS
0.61
xmax
5.0 mm
SPL1W
89 dB
Bl/√RE
3.57
Pmax
360 W