Black Hydra HGC-2.28
Mid Bass
6.5″ / 160 mm
Nominal diameter
56 Hz
Resonance
0.54
Q factor
90 dB
Sensitivity
150 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.0
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
56.1
Hz
Mechanical quality factor
QMS
6.81
Electrical quality factor
QES
0.59
Total quality factor
QTS
0.54
Large signal parameters
Power handling
P
75
W
Program power
Pmax
150
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz, estimated)
LE
0.27
mH
Winding material
Copper
Magnet
Force factor
Bl
6.3
N/A
Motor constant
Bl/√RE
3.58
N/√W
Diaphragm
Effective diameter
160
mm
Effective area
SD
201
cm²
Moving mass
MMS
20.2
g
Moving mass (without air load)
MMD
18.6
g
Suspensions
Stiffness
KMS
2.85
N/mm
Compliance
CMS
351
µm/N
Equivalent volume to the compliance
VAS
20.1
L
Mechanical resistance
RMS
1.05
N·s/m
Dimensions
Nominal diameter
6.5
″
160
mm
Volume occupied by the driver (estimated)
0.46
L
Frame material
Steel
Similar speaker drivers to Black Hydra HGC-2.28
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6 x 9″2 way
fS
56 Hz
SD
205 cm²
50 - 22000 Hz
QTS
0.54
xmax
2.0 mm
SPL1W
90 dB
Bl/√RE
3.24
Pmax
150 W
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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
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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