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Serial Number:
Purchased From:
Date of Purchase:
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Parameters for BlackAir Subwoofers
BlackAir 10
BlackAir 12
BlackAir 15
RMS power
450
550
650
Peak power
1300
1600
2000
Min, Input wattage
225
275
325
Diameter in inches
10”
12”
15”
Z- Nominal Impedance in Ohms
Dual 2 Ohm
Dual 2 Ohm
Dual 2 Ohm
Revc = DC voice coil resistance in Ohms
3.6
3.6
3.6
Fo = Free air resonance frequency in Hz
40.959
34.995
32.371
Sd = Piston area in square meters
34.600
53.000
85.000
Vas = Equivalent acoustic volume in cubic litres
15.386
46.311
119.250
Cms = Mechanical suspension compliance
90.152
116.102
116.234
Mmd = Diaphram mass in grams
117.997
144.112
193.713
Mms = Mechanical mass of cone and free air load in grams
121.677
151.128
207.962
BL = The magnetic strength of the motor structure
15.111
15.37
17.796
Qms = Mechanical Q factor of driver
1.171
1.952
1.992
Qes = Electrical Q factor of driver
0.578
0.550
0.501
Qts = the system’s Q at resonance (Fc)
0.437
0.429
0.417
n0 = The reference efficiency of the system in %
0.284
0.447
0.800
SPL = Speaker’s SPL 1 watt at 1meter in dB:
86.55
88.521
90.122
Voice Coil Diameter in inches
2
2
2.5
Mounting Depth in mm
128
141
168
Mounting Diameter in mm
240
285
355
Magnet weight in oz
40
60
75
Summary of Contents for BlackAir 12
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