14
Amplifier
Amplifier
Dual
4-ohm coils
in series
Dual
4-ohm coils
in Parallel
Dual
4-ohm coils
in Parallel
Dual
4-ohm coils
in series
4
44
4
4
44
4
Combination Series and Parallel:Combination Parallel and Parallel:
Example :
Example :
Series: The voice coils of each Dual 4-ohm speaker to yield 8-ohm speakers.
Parallel: The voice coils of each Dual 4-ohm speaker to yield 2-ohm speakers.
R1 + R2 = 4 + 4 = 8 ohms (for each speaker)
THEN
THEN
Parallel: These two 8 ohm speaker to yield 4-ohm system total.
Parallel: These two 2 ohm speaker to yield 1-ohm system total.
1
1
1
=
=
=
1
1
1
=
=
=
1
1
1
=
=
=
4
1
2
ohms
Ohm
Ohms (for each speaker)
1 + 1
1 + 1+
1 + 1
1 + 1
1 + 1
1 + 1
0.25
1
0.5
R1
R1
R1
R2
R2
R2
8
2
4
8
2
4