I just discovered it just now:-
Double Voice Coil (DVC) sub woofer is suitable for 2 channel power amp which do not have bridgeable feature. the DVC sub have 2 pairs of + and -. so, the box should have 2 pairs of + and -. then connect each pair from the sub to each pair on the power amp.
Single Voice Coil (SVC) sub woofer is suitable for monoblock or single channel power amp. there is only 1 pair of + and - on the sub and so do the monoblock power amp.
hmm... hope this help for u guys on setting up ur ICE.