Yamaha AV-90PY 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 from speaker location or listening room conditions. BALANCE 0 Adjusting the BASS and TREBLE controls BASS 0 TREBLE 0 L 5 5 R Note This control is effective only on the sound from the front speakers. -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 on 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 the headphones. PHONES 15