Yamaha DSP-A2 Owner's Manual - Page 25

English PREPARATION Ⅵ To drive main, center, front effect and/or rear speakers with external amplifiers The speaker connections described on page 21 are fine for most applications. If for some reason, however, you wish to drive main, center, front effect and/or rear speakers with your existing amplifier, etc., the following terminals are available for connecting external amplifier(s) to this unit. COUPLER MAIN PRE MAIN OUT IN OUTPUT CENTER FRONT REAR ( SURROUND ) SUB WOOFER 1 2 34 5 3 CENTER terminal This terminal is for center channel line output. If you drive a center speaker with an external power amplifier, connect the input terminal of the external amplifier to this terminal. There is no connection to this terminal when you use the built-in amplifier. 4 FRONT terminals These terminals are for front effect channel line output. If you drive front effect speakers with an external stereo power amplifier, connect the input terminals of the external amplifier (MAIN IN or AUX terminals of an amplifier or a receiver) to these terminals. There is no connection to these terminals when you use the built-in amplifier. 1 MAIN PRE OUT/MAIN IN terminals The PRE OUT terminals are for main channel line output, and the MAIN IN terminals are for line input to the built-in main channel amplifier. The PRE OUT and MAIN IN terminals must be connected with jumper bars when the built-in amplifier is used. However, if you drive main speakers with an external stereo power amplifier, first remove the jumper bars, and then connect the input terminals of the external amplifier (MAIN IN or AUX terminals of an amplifier or a receiver) to the PRE OUT terminals. No connection is needed to the MAIN IN terminals. * Output signals from the PRE OUT terminals are affected by the use of BASS, TREBLE, BALANCE controls and BASS EXTENSION button and the TONE BYPASS button. 2 SUBWOOFER terminal When using a subwoofer, connect its amplifier input to this terminal. Low frequencies distributed from the main, center and/or rear channels are output from this terminal. (The cut-off frequency of this terminal is 90 Hz.) Signals of LFE (low frequency effect) generated when Dolby Digital or DTS is decoded are also output if they are assigned to this terminal. 5 REAR (SURROUND) terminals These terminals are for rear channel line output. If you drive rear speakers with an external stereo power amplifier, connect the input terminals of the external amplifier (MAIN IN or AUX terminals of an amplifier or a receiver) to these terminals. There is no connection to these terminals when you use the built-in amplifier. Notes • Output level of signals from all of these terminals are adjusted by the use of VOLUME control on the front panel or MASTER VOLUME keys on the remote controller. • If an external power amplifier is connected to the CENTER, FRONT or REAR output terminals, do not use the corresponding SPEAKERS terminals (CENTER, FRONT or REAR). 23