HKTS 2 SUB SYSTEM (serv.man2) - Harman Kardon Audio User Guide / Operation Manual. Page 10

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USE THIS INSTALLATION METHOD FOR
DOLBY PRO LOGIC APPLICATIONS (NOT
DOLBY DIGITAL, DTS OR OTHER DIGITAL
PROCESSING), WHERE THE RECEIVER/
PROCESSOR IS EQUIPPED WITH A SUB-
WOOFER OUTPUT, OR A VOLUME-
CONTROLLED PREAMP (LINE-) LEVEL 
OUTPUT:

Use RCA-type patch cords to connect the
line-level subwoofer outputs on your receiver
or amplifier to the line-level inputs on the
subwoofer. IMPORTANT: Do not use the 
SUB input on the subwoofer with Dolby
Pro Logic processors. Note: If your receiver
or amplifier only has one subwoofer output
jack, then you will need to use a Y-connector
(not included). Plug the male end of the 
Y-connector into your receiver or amplifier’s
subwoofer output jack, and connect each of
the two female ends to separate RCA-type
patch cords. Finally, plug the RCA-type
patch cords into the line-level inputs on the
subwoofer.

Connect each speaker to the corresponding
speaker terminals on your receiver or amplifier.

USE THIS INSTALLATION METHOD FOR
DOLBY DIGITAL, DTS OR OTHER DIGITAL
SURROUND PROCESSORS:

Use the line-level input jack marked “SUB”
for the Low-Frequency Effects channel.
Connect this jack to the subwoofer output
or LFE output on your receiver or amplifier.
Connect each speaker to the corresponding
speaker terminals on your receiver or 
amplifier.

Make sure that you have configured your
surround-sound processor for “Subwoofer
On.” The front left, front right, center and
rear speakers should all be set to “Small.”