What is a dual voice coil (DVC) speaker?
A DVC speaker has 2 coils instead of one as in a Single Voice Coil (SVC) speaker. Both coils have the same resistance, and both coils MUST be hooked up to the same channel of the same amp. You cannot run both coils off different channels of the same amp with the same signal, and you must use both coils. DVC speakers offer a lot of flexibility. Given 2 DVC speakers, there are 4 different wiring methods. These 4 methods are shown below for DVC drivers with 4 ohm coils.