Polk Audio Blackstone TL1900 Mode D'emploi page 7

ADJUSTING YOUR SYSTEM
SUBWOOFER ADJUSTMENTS
Your Powered Subwoofer offers a range of setting options. We
recommend the following settings as starting points, but the settings
that are best for you depend upon your speaker placement, electronics
and personal taste. After you've become familiar with what the settings
do, experiment with alternate options to find the method that works best
for your system setup. You'll find an informative article on "Subwoofer
Positioning and Adjustment" in the set up section at:
http://www.polkaudio.com/polk-university/articles/bass-
management-and-subwoofer-connections.
Note: When you set up your subwoofer for the first time, you will
probably have to make adjustments several times before you hear what
you personally like. Start with the volume at 50%.
AC POWER CONNECTION AND AUTO ON/OFF
Your subwoofer features auto on/off circuitry, marked "auto" on the power
switch, which automatically turns your subwoofer on when it senses a
program signal. We recommend the "auto" setting if your subwoofer is
always receiving power (ie, if it's plugged into a wall outlet).
When no signal is present, the circuit turns the subwoofer off after
15 minutes. If you are concerned about the brief delay between when
the music starts and when the subwoofer turns on, simply leave your
subwoofer in the "On" position. You may want to leave your system
unplugged during extended periods of non use, such as during a vacation.
FINE TUNING YOUR SUBWOOFER
• V olume—Adjust by ear using a wide variety of CDs and video
sources. Adjust for deep, powerful bass without "boominess."
• L ow Pass—NOTE: This control should be turned all the way up
when the subwoofer is connected with Method #1 (LINE IN). This
control adjusts the frequency range over which the subwoofer
operates. If male vocals sound "thin," turn this control up until the
voice sounds rich but not "boomy." If male vocals sound too "thick"
or "chesty," turn this control down until the voice sounds natural.
• P hase Switch—Sit in your favorite listening position. Play music
(not a movie) with a walking bass line. We recommend playing jazz
or country music. Now listen carefully for the point at which the
subwoofer transitions to your main speakers. This is the crossover
point, and this point should be below the frequency of a male
human voice. Whichever phase setting sounds louder or fuller at
the subwoofer's crossover (transition) point is the optimum setting.
Sometimes no difference will be heard.
TROUBLESHOOTING
No sound coming from subwoofer
Subwoofer doesn't sound right
Subwoofer has no power
If hookup is "Sub Out" to LINE
IN, is your receiver set to
"Subwoofer—yes" If hookup is
via speaker wire, check that the
polarity of the wires is correct.
If hookup is "Sub Out" to LINE
IN, is your receiver set to
"Subwoofer—yes" If hookup is
via speaker wire, check that the
polarity of the wires is correct.
Check outlet; check fuse after
unplugging the subwoofer and
calling customer service.
Rear Amp Panel
Power Switch Settings:
ON = GREEN LED
OFF = RED LED (no signal)
AUTO
No signal = RED LED
Signal = GREEN LED
TECHNICAL ASSISTANCE AND SERVICE
If, after following these hook up directions, you experience difficulty,
please double-check all wire connections. Should you isolate the problem
to the speaker, contact the authorized Polk Audio dealer where you made
your purchase, or call Polk Audio's friendly Customer Service Department
at 1-800-377-7655 (calls from US or CAN only), (Outside the US or CAN,
410-358-3600), 9am to 6pm EST, Monday through Friday.
You may also contact us via email: polkcs@polkaudio.com. For
more detailed hook up information and manual updates, visit:
www.polkaudio.com.
For recommended accessories (including speaker stands, brackets,
accessories and exclusive Polk Audio logowear), visit our Webstore:
http://shop.polkaudio.com.
For performance specifications on the Blackstone
visit our website at www.polkaudio.com.
For more information visit our website at www.polkaudio.com
ENGLISH
TL1900 system,
®
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