Yamaha YST-SW300 Owner's Manual page 9

2 CONNECTING TO PRE OUT AND MAIN IN TERMINALS
The use of the H.P.F. OUTPUT terminals for connections with the amplifier will improve sound quality of your speaker system.
The H.P.F. (High-Pass Filter) OUTPUT terminals of this unit cut off frequencies below the selected frequency point from the input
signals, and output high frequencies only. By connecting this terminal with the MAIN IN terminals of the amplifier, the main speakers
reproduce high frequencies only.
This will make the whole sound quality clear by preventing sound muddying between the main speakers and this unit.
* This connection can be made if your amplifier has PRE OUT and MAIN IN terminals or you are using separate amplifiers (pre-
amplifier and main amplifier).
To connect one unit only
Left speaker
This unit
OUTPUT AUTO PHASE INPUT2 H.P.F.OUTPUT
TO SPEAKERS POWER
ON OFF NOM REV
FROM AMPLIFIER
INPUT1
To AC outlet
AUTO
POWER
ON OFF
50Hz 80Hz I00Hz
Pin plug cords
PHASE INPUT2 H.P.F.OUTPUT
80Hz
NOM REV 50Hz I00Hz
< >
Amplifier
PRE OUT MAIN IN
Right speaker
Pin plug cords
Amplifier
9