Depending upon speaker layout, you can switch between 3-way and 4-speaker systems. (Select a system configuration before adjusting PEQ, time alignment or cross over.)
Press the [SELECT] (Up/Down) button to select SP Layout.
Press the [ENTER] button.
The speaker layout setting mode is activated.
Press the [SELECT] (Up/Down) button to select 3 WAY or 4 SP+SW.
Press the [ENTER] button for more than five seconds.
"OK?" will be displayed.
Press the [ENTER] button for less than one second.