Connecting To H.p.f. Output Terminals - Yamaha YST-SW1500 Owner's Manual

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 the subwoofer 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 the subwoofer.
* 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
Right main speaker
Subwoofer
REMOTE AUTO H.P.F.OUTPUT LFE NORMAL OUTPUT
STANDBY TO SPEAKERS
/MONO
HIGH OFF 80Hz 100Hz
OUTPUT INPUT LOW
GND INPUT INPUT
3 2
FROM AMPLIFIER
INPUT
1
8
E-

Connecting to H.P.F. OUTPUT terminals

H.P.F.OUTPUT
80Hz 100Hz
GND
POWER
ON
OFF
AC IN
Audio pin cable
(not included)
LFE OUTPUT
NORMAL
TO SPEAKERS
/MONO
INPUT INPUT
3 2
FROM AMPLIFIER
INPUT
1
PRE OUT MAIN IN
Amplifier
Left main speaker
Audio pin cable
(not included)