For a system without a 2 output preamp, is the only way to hook up a sub by plugging the preamp outputs into the sub via long RCA interconnects, then connect speaker wires from the sub outs to the main speakers? Does the signal coming out from the sub to the mains get processed by the sub's amp as well? If so, this does not sound like a good approach. Is there any other way to do a sub in a 2 channel system without molesting the main speaker's signal with the sub amp? Hope someone can help, thanks.
Bob
Bob