Yamaha A-S1100 Owners Manual - Page 7

4 SPEAKERS selector Turns on or off the sets of speakers connected to the SPEAKERS L/R CH A and/or B terminals on the rear panel, as follows. OFF: Both sets of speakers are off. A/B: The set of speakers connected to the A or B terminals is on. A+B BI-WIRING: Both sets of speakers are on. 5 METER selector Switches the meter function as follows: OFF: Turns off the meter and the illumination. PEAK: The meter functions as a peak level meter. The peak level meter shows a momentarily highest audio output level. VU: The meter functions as a VU (Volume Unit) level meter. The VU level meter shows an effective audio output value that is similar to human senses. 6 Meters (LEFT/RIGHT) Show the audio output level of the left (LEFT) and right (RIGHT) channels in VU or PEAK meter mode. The VU or PEAK meter can be selected by the METER selector. 7 BASS control Adjusts the volume level of the bass range. Control range: -10 dB to 0 to +10 dB 8 TREBLE control Adjusts the volume level of the treble range. Control range: -10 dB to 0 to +10 dB 9 BALANCE control Adjusts the audio output balance of the left and right speakers to compensate for sound imbalances caused by speaker locations or listening room conditions. Notes • When both the BASS and TREBLE controls are set to the 0 position, audio signal bypasses the tone control circuitry. • Adjusting the BASS, TREBLE, and BALANCE controls does not affect input signals at the MAIN IN jack and output signals at the LINE 2 REC jack. Caution If you use two sets (A and B), the impedance of each speaker must be 8  or higher. 7 En