Dave, the short answer is “yes.” By wiring the sub to the main speaker level connections (on the receiver), the sub should (effectively) filter the signal, sending all the material above the crossover through to the mains leaving the sub to reproduce only the material below the crossover. The...
It sure does. When you tell the Marantz there is no sub and the mains are large...everything goes to the mains but only after your sub filters out the low stuff. --Steve