Yamaha AP-U70 Setup Manual page 9

[DP-U50 only]
To reproduce sound signals inputted to this unit over
speakers, connect this unit to speakers with a built-in
amplifier, a mini-component system, etc., or connect this
unit to speakers by using an external power amplifier.
Connect the analog inputs of speakers with a built-in
amplifier, etc. to this unit's PRE OUT using a commercially
available analog pin-plug cord or a pin (stereo)-to-mini
(stereo) plug cord.
Speakers with a built-in
amplifier
Left
INPUT
L R
Adding a subwoofer
Bass performance can be extended by connecting a
subwoofer to this unit's SUBWOOFER OUTPUT using a
commercially available audio pin-plug cord.
The use of a subwoofer is also suitable for reproducing the
effects of sound field programs.
Note
The SUBWOOFER OUTPUT is a line-level output. Use a
subwoofer which has its own built-in power amplifier, such as
the Yamaha YST-SW45.
STANDBY/ON HIGH CUT
50Hz 150Hz
SUPERWOOFER SYSTEM YST-SW45
Subwoofer
Right
VOLUME
0 10
LINE IN
Note
The level of signals outputted from the PRE OUT varies by the
use of the volume control on the front panel or the VOLUME
keys on the remote control. So, it is recommended to adjust the
speaker output level on this unit or the remote control, and fix
the volume of speakers with a built-in amplifier, etc. at a
certain level.
SUB
WOOFER
OUTPUT
SUB
WOOFER
OUTPUT
CONNECTIONS
ANALOG
R L
PC IN
AUX 1
IN
AUX 2
IN
PRE
OUT
R L
R L
DIGITAL
USB
ANALOG
R L
PC IN
AUX 1
IN
AUX 2
IN
REC
OUT
R L
DIGITAL
USB
7
E-