Use the following procedure to adjust the balance of the UPPER and LOWER TONES in DUAL or SPLIT Mode:
1. Simultaneously press the SPLIT and DUAL buttons to display the "Parts Volume" menu.
2. Use the UP / DOWN buttons to select "UPP Volume" or "LWR Volume."
3. Use the DEC / INC buttons to raise or lower the selected part volume.
4. Press EXIT several times to return to the main menu.