Beyma 6CMV2

Woofer

6.5″ / 165 mm
Nominal diameter
90 Hz
Resonance
0.34
Q factor
92 dB
Sensitivity
± 5.7 mm
Linear excursion
440 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
91.7
dB
Frequency response
95 - 8000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
90.0
Hz
Mechanical quality factor
QMS
1.40
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.34

Large signal parameters

Maximum linear excursion
xmax
5.7
mm
Maximum excursion before damage
xlim
30.0
mm
Air volume displaced at xmax
VD
80
cm³
Power handling
P
220
W
Program power
Pmax
440
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.5
mH
VC Diameter
38
mm
Winding height
HVC
14
mm

Magnet

Force factor
Bl
9.4
N/A
Motor constant
Bl/√RE
4.08
N/√W
Air gap height
HAG
6
mm

Diaphragm

Effective diameter
134
mm
Effective area
SD
140
cm²
Moving mass
MMS
13
g
Moving mass (without air load)
MMD
11.8
g

Suspensions

Stiffness
KMS
4.26
N/mm
Compliance
CMS
235
µm/N
Equivalent volume to the compliance
VAS
6.5
L
Mechanical resistance
RMS
5.5
N·s/m

Dimensions

Nominal diameter
6.5
165
mm
Overall diameter
167
mm
Baffle cutout diameter
141
mm
Overall depth
80
mm
Volume occupied by the driver (estimated)
0.64
L
Net weight
2.2
kg
Beyma 6CMV2 SPL & Impedance
Beyma 6CMV2 Dimensions

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