RX-V573 Setting Speaker Impedance
Note: This procedure will be done on the front panel.
1. Set the unit to Standby Mode using the Power button. (Upper left corner.)
2. While holding down Straight button, hit the Power button. Keep holding down the Straight button until you see Advanced Setup flash on the front screen or SP IMP.
3. Once SP IMP is displayed, you can use the Straight button to select 6 ohms or 8 ohms (Default).
4. When the proper selection is made, turn off the unit using the Power button. The settings will be reflected the next time the unit is powered on.