Orion Car Audio Cobalt CO104S - Manual (Page 7)

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Series—Two Speakers (Single 4 ohm voice coils)
Two single 4 ohm voice coil subwoofers with the voice coils connected in series to
result in an 8 ohm load to the amplifier.
+
+
+
4 ohm
_
_
_
4 ohm
Figure 4
Figura 4
Abbildung 4
1. Connect the woofers in series by connecting the negative (-) terminal of the first
woofer voice coil to the positive (+) terminal of the second woofer voice coil.
2. Wire the positive (+) terminal of the first woofer voice coil to the positive (+)
terminal on the amplifier. Wire the negative (-) terminal of the second woofer
voice coil to the negative (-) terminal on the amplifier.