Yamaha RX-V670 Owner's Manual - Page 15

Adjusting the BALANCE control Adjust the balance of the output volume to the left and right speakers to compensate for sound imbalance caused by speaker location or listening room conditions. BALANCE 0 Selecting the SPEAKER system Because one or two speaker systems (as front speakers) can be connected to this unit, the SPEAKERS switches allow you to select speaker system A or B, or both at once. SPEAKERS L 5 5 R Note This control is effective only for the sound from the front speakers. Adjusting the BASS and TREBLE controls BASS 0 TREBLE 0 -5 5+ -5 5+ BASS : Turn this clockwise to increase (or counterclockwise to decrease) the low frequency response. TREBLE : Turn this clockwise to increase (or counterclockwise to decrease) the high frequency response. Note These controls are effective only for the sound from the front speakers. When you listen with headphones Connect the headphones to the PHONES jack. You can listen to the main sound through headphones. When listening with headphones privately, set both the SPEAKERS A and B switches to the OFF position. PHONES 15