32
33
English
ML 3800
351
360
200
360
351
380
300
380
351
380
300
380
67
67
90
L: 2
20
351
400
400
400
82
82
105
L: 250
60
48
36
24
12
0
180°
108°
36°
-36°
-108°
-180°
60
48
36
24
12
0
180°
108°
36°
-36°
-108°
-180°
60
48
36
24
12
0
180°
108°
36°
-36°
-108°
-180°
60
48
36
24
12
0
180°
108°
36°
-36°
-108°
-180°
Performance
Sealed Box
Dimension
Performance
Dimension
Reflex Box
1 Speaker
Series
Parallel
Mixed
1
2
1
2
3
1
2
3
4
5
Free Air DC
Resistance
ML 2500
ML 3000
ML 3800
2,50
5,00
7,50
1,25
0,83
0,63
2,50
2,50
3,75
1,67
1,25
Ω
Connections
Usually, a car amplifiers power output increases as load decreases;
WE SUGGEST THAT YOU CHECK THE RECCOMENDATIONS BY THE AMPLIFER
MANUFACTURER AS TO THE MINUMUM IMPEDANCE THAT YOUR AMPLIFIER
CAN ACCEPT, AND NEVER GO BELOW THIS .
When using two or more speakers in your design, it is extremely important to use identical models,
installed in the same type of enclosure.
In the following page there are some different examples of connections in series, in parallel and
mixed (series/parallel) that meet most needs, both in terms of load impedance and of the maximum
sound pressure achievable.
Please, refer to the following table to make sure that the chosen configuration is supported
by your amplifier:
Use these formulas to calculate the impedance for different types of connections.
Connections in series:
Total impedance =
Ω
Sub1 +
Ω
Sub 2 +
Ω
Sub 3…
Connections in parallel:
Total impedance =
where "
Ω
Sub" is the impedance
of Subwoofer number 1 etc. ...
Ω
Sub1
1
Ω
Sub2
1
+
+
...
...
1
Ω
Sub3
1
All of the dimensions shown on the illustration are INTERNAL measurements expressed in millimetres (mm).
Damping materials and reflex tubes are chosen from the AZ audiocomp catalog.
Caution
Damping material:
2.5 sheets
of FONOFORM
Reflex tube:
AR 80V
Damping material:
1.5 sheet
of FONOFORM
Damping material:
2.5 sheets
of FONOFORM
Damping material:
3 sheets
of FONOFORM
Reflex tube:
AR 100V
Design
The values in the table refer to the connection
patterns at the pages 34 and 35.
Caution
