where are you getting 2 channel from? a LOOP as it is described is not 2 channel. as stated there are 2 wires (pair) at the amp. nowhere in the chain does it say they are separated. simply not enough detail to answer

if one wire goes to left BedR speaker then to one side of the DVC and ENDS and the same happens for the right speaker in the BedR then to the other half of the DVC the yes, 2 channel in series. that is not clear in the description