Freedom units
Advanced mode
Basic Port Calculators
Number of ports
Diameter cm
3"
4"
6"
8"
10"
=
cm²
Volume liters
Tuning Hz
OR
Length cm
K-factor
=
cm
=
Hz
=
%
/
l
=
%
/
l
Port width
Port height
=
cm²
Volume liters
Tuning Hz
OR
Length cm
K-factor
=
cm
=
Hz
=
%
/
l
=
%
/
l
"all in one"
Box Calculator
Subwoofer size "
Number of subs
Desired Tuning Hz
% of wavelength
Net volume
=
282.74
l
Port length
=
68.6
cm
Port area
=
514.4
cm²
Port internal volume
=
35.3
l
Quasi-6th order
port calculator
"FRONT"
Number of ports
Port area cm²
Tuning Hz
Volume liters
=
15.833
cm
"REAR"
Number of ports
Port area cm²
Tuning Hz
Volume liters
=
49.199
cm
Port length in relation
to Tuning wavelength
Desired Tuning Hz
% of wavelength
Volume liters
Port length
=
68.6
cm
Port area
=
444.7
cm²
Port internal volume
=
30,5
l
Sealed box
FC calculator
Qts
VAS
Volume liters
FS
Qtc=
0.841
fc=
38.3
Hz
f3=
33.1
Hz
reciprocal of the
sum of reciprocals
value 1
value 2
=
521,739
Box
Volume Calculator
Width (cm)
Height (cm)
Depth (cm)
long side (cm)
short side (cm)
Slanted wall
Wall thickness (cm)
=
—
l
"Wiring Calculator"
Coil Ω
Coils per sub
Subs
Coils in series,
Subs in parallel
=
1
Ω
All in parallel
=
0,25
Ω
Impedance / VA
Current A
Voltage V
Impedance
=
0,5
Ω
Power
=
800
VA
Impedance
curve
tool
Voltage/Power
Difference in dB
quantity to compare
Power
Voltage
value 1
value 2
=
3
dB
dB difference in
voltage/power
quantity to compare
Power
Voltage
Initial value
Change in dB
=
6000
Amp Power Scaling
by input Voltage
Power
Voltage 1
Voltage 2
=
5459.06
W
Change:
=
2259.00
W
=
2.320
dB
EMMA
Maximum Fuse
i.e., max 2% loss
Cross-section mm²
Cable length
(+ & - total m)
Voltage
Material
ofc
cca
Max Fuse Size
=
857.1
A
EMMA
Minimum Cable
i.e., max 2% loss
Current A
Cable lengt
(+ & - total m)
Voltage
Material
ofc
cca
Minimum Cable Size
=
43.8
mm²
Speaker Wire
Losses
Power W
Impedance Ω
Cable length m
Cross-section mm²
Material
ofc
cca
silver
iron
Output voltagee =
V
Cable resistance =
mΩ
Current =
A
Voltage loss =
V
Power loss =
W
Loss % =
%
Loss dB =
dB
Power cable
Losses
Current A
Cross-section mm²
Cable length m
Voltage V
Material
ofc
cca
silver
iron
Input power =
W
Cable =
mΩ
Voltage drop =
V
To the amp =
V
To the amp =
W
Power loss =
W
Loss/meter =
W/m
Loss % =
%
Loss dB =
dB
Sensitivity
Power
Score
=
121.218
dB/W
Sine Tone Generator
hz
+
-
Play
Stop
20dB
Mute
Propper droppers
Score
40Hz
33Hz
25Hz
20Hz
Score=
152.86
Pink Noise
Sweep Generator!
PD Tones
40Hz
33Hz
25Hz
20Hz
10Hz
