13
SUB WOOFER
1 ~ 8 OHM
Amplifier Example : Speaker with Dual 4-ohm coils
4 + 4 = 8 ohms
Example : Speaker with Dual 4-ohm coils
1 = 1 = 2 ohms
1
4 4
+ 1 0 .5
Amplifier
R1 = resistance of 1 speaker (or voice coil)
R2 = resistance of 2 speaker (or voice coil)
R3 = resistance of 3 speaker (or voice coil), Etc
Dual
4-ohm coils
in series
Dual
4-ohm coils
in series
4
4
4
4
Series formula:
R1 + R2 + R3 ..... = Total
Parallel formula:
1 = Total
1 + 1 + 1 ...
R1 R2 R3
st
nd
rd