S e r i a l c o n n e c t i o n
P a r a l l e l c o n n e c t i o n
S C H E M E S O F E N A B L I N G T H E L O A D O F T H E S U B W O O F E R
Vo i c e c o i l s 1 + 1 , 2 + 2 , 4 + 4 O h m
To t a l i m p e d a n c e =
Ω
S u b 1 +
Ω
S u b 2 +
Ω
S u b 3 . . .
Ω
S u b 1 +
Ω
S u b 2 +
Ω
S u b 3 . . .
To t a l i m p e d a n c e =
1
1
1
1
4
. . .
. . .
The minimum permissible load impedance at the output of the amplifier is 1 ohm. Use these formulas to calculate the
load impedance of various types of connections.
4 . C O N N E C T I O N M E T H O D S
EN
The subwoofer has
voice coil
D1, D2 or D4.
2
+
2
Ohm
4
+
4
Ohm
8
Ohm
4
Ohm
1+1
Ohm
2
Ohm
Voice coils
Total impedance
2+2
Ohm
4+4
Ohm
2
Ohm
1
Ohm
1+1
Ohm
0,5
Ohm
Voice coils
Total impedance
O n e s u b w o o f e r, c o i l s i n p a r a l l e l
O n e s u b w o o f e r, c o i l s i n s e r i e s
S u b w o o f e r s i n s e r i e s , c o i l s i n p a r a l l e l
2
+
2
Ohm
4
+
4
Ohm
4
Ohm
2
Ohm
1+1
Ohm
1
Ohm
Voice coils
Total impedance
In any case do not expose the amplifier to the load
s
lower than specified by the manufacturer. Use these schematics to
calculate load impedance of different connection types.
