RCF MB12Y800
Woofer
12″ / 305 mm
Nominal diameter
55 Hz
Resonance
0.26
Q factor
95 dB
Sensitivity
± 6 mm
Linear excursion
1400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.4
dB
Frequency response
45 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
55.0
Hz
Mechanical quality factor
QMS
5.90
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Maximum excursion before damage
xlim
20.0
mm
Air volume displaced at xmax
VD
300
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.4
Ω
Inductance (1kHz)
LE
1.3
mH
VC Diameter
89
mm
Winding height
HVC
19
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
22.5
N/A
Motor constant
Bl/√RE
9.68
N/√W
Air gap height
HAG
10
mm
Diaphragm
Effective diameter
260
mm
Effective area
SD
500
cm²
Moving mass
MMS
72
g
Moving mass (without air load)
MMD
63.7
g
Suspensions
Stiffness
KMS
8.77
N/mm
Compliance
CMS
114
µm/N
Equivalent volume to the compliance
VAS
46
L
Mechanical resistance
RMS
4.22
N·s/m
Spider material
with silicon damping
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
320
mm
Baffle cutout diameter
284
mm
Volume occupied by the driver
2.2
L
Net weight
7.6
kg
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SpeakerbenchSimilar woofers to RCF MB12Y800
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12″Subwoofer
fS
55 Hz
SD
533 cm²
55 - 3150 Hz
QTS
0.27
xmax
9.0 mm
SPL1W
95 dB
Bl/√RE
10
Pmax
1400 W
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