Yamaha A-S1100 Owners Manual - Page 17

External amplifier or active subwoofer Speakers A (L channel) +- -+ CD recorder, tape deck, etc. Preamplifier, AV receiver, etc. Speakers B (L channel) Notes • Because the power amplifier of A-S1100 is of the floating balanced type, the following types of connections are not possible. Fig. 1 - Connecting with the left channel "-" terminal and the right channel "-" terminal as well as "+" terminals (Fig. 1). + L - Connecting with the left channel "-" terminal and the right channel "-" terminal - inverted (cross connection, Fig. 2). - Deliberately connecting with the left/right channel "-" terminals and metal part - + on the rear panel of this unit, as well as accidentally touching them. R • Do not connect your active subwoofer to the SPEAKERS L/R CH terminal. Connect it to the PRE OUT jacks. • Do not connect a component with no volume control, such as a CD player, to the MAIN IN jacks, as the volume level of the signals input to the MAIN IN jacks is fixed. If such equipment is connected, a sound may burst, and the unit and/or speaker may be damaged. + - Fig. 2 + L - R 17 En