My new home has a preinstalled multiroom ceiling speaker system. I’m not clear on how to set the jumpers on the impedance matching volume controls. I have 3 rooms, each with one right and one left speaker connected to a volume control. The wires from the three volume controls come back to the amplifier area. The volume controls have jumper selectors 1x, 2x, or 4x for both right and left speaker. Where should the jumpers be? The speakers are 8 ohm. Since the volume controls are impedance matching and assuming jumpers properly set can I parallel connect all 3 sets to the powered Zone 2 output of my AVR?
