In order to protect your purchase and aid your
warranty please fill in the following form and
keep it safe for your future reference:
Model Number:
Serial Number:
Purchased From:
Date of Purchase:
KEEP
IT SAFE
Staple your receipt here:
Parameters for BlackDeath Subwoofers
BD154P BD154C BD151C
RMS power
2500
2500
2500
Peak power
7500
7500
7500
Min, Input wattage
1250
1250
1250
Diameter in inches
15”
15”
15”
Z- Nominal Impedance in Ohms
4 Ohm DVC
4Ohm DVC
1Ohm DVC
Revc = DC voice coil resistance in Ohms
7.2
7.2
1.8
Fo = Free air resonance frequency in Hz
45.308
51.631
51.631
Sd = Piston area in square meters
85.00
85.000
85.000
Vas = Equivalent acoustic volume in cubic litres
62.937
37.66
37.66
Cms = Mechanical suspension compliance
61.345
36.421
36.421
Mmd = Diaphram mass in grams
227.732m
210.477
210.477
Mms = Mechanical mass of cone and free air load in grams
241.981
224.727
224.727
BL = The magnetic strength of the motor structure
33.802
39.409
39.409
Qms = Mechanical Q factor of driver
2.448
2.118
2.118
Qes = Electrical Q factor of driver
0.496
0.364
0.364
Qtc = the system’s Q at resonance (Fc)
0.441
0.311
0.311
n0 = The reference efficiency of the system in %
1.084
1.700
1.700
SPL = Speaker’s SPL 1 watt at 1meter in dB:
92.368
94.344
94.344
Voice Coil Diameter in inches
3
3
3
Mounting Depth in mm
212
212
212
Mounting Diameter in mm
350
350
350
Magnet weight in kg
8.2
8.2
8.2
