Yamaha RX-V640RDS EN - Manual (Page 16)

14
Connecting an external amplifier
If you want to increase the power output to the speakers,
or want to use another amplifier, connect an external
amplifier to the OUTPUT jacks as follows.
Note
• When RCA pin plugs are connected to the OUTPUT jacks for
output to an external amplifier, the SPEAKERS terminals also
output signals.
1 MAIN jacks
Main channel line output jacks.
Note
• The signals output through these jacks are affected by the
BASS and TREBLE settings.
2 REAR (SURROUND) jacks
Rear channel line output jacks.
3 CENTER jack
Center channel line output jack.
4 REAR CENTER jack
Rear center channel line output jack.
5 SUBWOOFER jack
When using a subwoofer with built-in amplifier, including
the YAMAHA Active Servo Processing Subwoofer
System, connect the input jack of the subwoofer system
to this jack. Low bass signals distributed from the main,
center and/or rear channels are directed to this jack in
accordance with your SPEAKER SET selections. The
unit also directs the LFE (low-frequency effect) signals
generated when Dolby Digital or DTS is decoded to this
jack based on your SPEAKER SET selections.
Notes
• The cut-off frequency of the SUBWOOFER jack is 90 Hz.
• If you do not use a subwoofer, allocate the signals to the main
left and right speakers by changing the settings of SOUND 1
SPEAKER SET item “1E BASS” on the set menu.
• Use the control on the subwoofer to adjust its volume level.
You can also adjust the volume level by using this unit’s
remote control (see “SETTING THE SPEAKER LEVELS” on
page 50).
Connecting an external decoder
This unit is equipped with 6 additional input jacks (MAIN
left and right, CENTER, SURROUND left and right and
SUBWOOFER) for discrete multi-channel input from a
component equipped with a multi-channel decoder and 6
channel output jacks such as a DVD/SACD player.
Note
• When you select 6CH INPUT as the input source, the unit
automatically turns off the digital sound field processor, and
you cannot use DSP programs.
R
L
CENTER
SUB
WOOFER
REAR
CENTER
REAR
(SURROUND) MAIN
OUTPUT
1 2 3
4 5
CONNECTIONS
CENTER
SUB
WOOFER
6CH INPUT
MONITOR OUT
OUT
VCR 2
/DVR
IN
SURROUND
MAIN
S VIDEO VIDEO
L R L R
CENTER
SUBWOOFER MAIN
SURROUND
DVD/SACD player
0103RX-V640_09-18_EN-GB.p65 03.2.12, 4:45 PM 14