Polk Audio Digital Solution 2, Instruction Manual

www.polkaudio.com

26

Interference

If this unit is placed very near a television, picture disturbance 
or noise may occur on the TV. In such a case, move the preamp/
processor as far as possible from the television. If the problem 
persists, re-route the TV antenna cable so that it is as far as possible
from the power cable and audio and video connection cables of the 
DS-2 system. Since the phenomenon is most likely to occur when 
using a TV antenna with a 300-ohm feeder wire, we recommend 
using an outdoor antenna connected via a 75-ohm coaxial cable.

Safe Limits of Operation 

The Digital Solution system was made with the highest quality
materials for years of trouble-free performance. However, damage to
the system can occur if the system is played at excessive listening 
levels. When the sound becomes harsh or distorted, you have reached
the safe limit of operation. Turn down the volume until the sound is
clear and undistorted. 

Protection Circuits

The DS-2 amplifier features several circuits to protect the amplifier
and speakers from damage from overheating, shorts, and other 
electrical faults. If these protection circuits are tripped, all channels
will turn off, even if the fault occurs on only one channel. In such
cases, turn off the preamp/processor, remove the fault (usually a 
short on one of the speaker wires where the + and - wires have
touched each other) and turn the system back on again. In the case 
of overheating, allow the system to cool down for about 15 minutes
and re-start the system. Overheating is usually a sign that the 
amplifier (in the subwoofer enclosure) does not have enough air 
circulation. Move the subwoofer to a less enclosed space.

Maintaining the Appearance of Your System

The preamp/processor and speaker enclosures may be cleaned with a
soft damp cloth or duster. Do not use harsh detergents and cleaning 
fluids, they can permanently damage the finish. Vacuum the speaker
grilles to remove dust. 

Q. “Why does my system hum?”
A.  “It doesn’t know the words.” 

This is another lame example of what passes for humor in the audio
business. Here is the real answer.

In some installations you may hear a humming noise from the
subwoofer. Most hum problems are caused by ground loops. That is, 
the electrical grounds of the components in your system are not at the
same electrical potential. To help avoid hum problems, make sure that
every component in the audio/video system is plugged in to the same
electrical circuit (not necessarily the same outlet). A common ground
loop source is cable TV. Disconnect the coaxial cable from your TV
and/or VCR. If the hum goes away, the cable TV is the ground loop 
villain. In that case, you need a 75-ohm ground loop isolator. This
device is about the size of a pen and is attached to your coaxial cable
where it plugs into your VCR (or television). You can obtain this device
from some audio dealers, Radio Shack stores, Xantech (1-800-843-
5465) or Channel Plus (1-800-999-5225).

Ground loops and hum can also be the result of faulty electrical 
wiring in your home. Consult a licensed electrician to evaluate and,
if necessary, repair the AC wiring in your home. Light dimmers also
tend to introduce noise into audio systems. Remove them.

If none of our suggestions works for you, call our customer service
number shown below.

Technical Assistance or Service 

If, after following the hookup and use directions and consulting the
troubleshooting chart on page 25, you still have trouble, please call our
cheerful customer service representatives. They are happy to answer
your questions and provide fast, friendly service. In North America call
(800) 377-7655, Monday through Friday, 9:00 AM through 6:00 PM
Eastern time. Or you can e-mail us at our Internet service address:
polkcs@polkaudio.com.

Polk Audio, Inc., warrants to the original purchaser only that the 

Preamp/Processor and Amplifier

in this Polk Audio Loudspeaker

Product (the “Product”) will be free from defects in material and
workmanship for a period of three (3) years from the date of original
retail purchase from a Polk Audio Authorized Dealer. Polk Audio, Inc.,
further warrants to the original purchaser only that the

Loudspeaker(s)

in this Polk Audio Product (the “Product”) will be free

from defects in material and workmanship for a period of five (5) years
from the date of original retail purchase from a Polk Audio Authorized
Dealer. However, this Warranty will automatically terminate prior to 
the expiration if you sell or otherwise transfer the Product to any other
party. The original retail purchaser shall hereinafter be referred to as
“you.” To allow Polk Audio to offer the best possible warranty service,
please fill out the Product Registration Card(s) and send it to the
Factory, at the address provided on the Product Cards(s) within ten 
(10) days of the date of purchase.

Defective Products must be shipped, together with proof of purchase,
prepaid insured to the Polk Audio Authorized Dealer from whom you
purchased the Product, or to the Factory at 2550 Britannia Boulevard,
Suite D, San Diego, California 92154-7408. Products must be shipped in
the original shipping container or its equivalent; in any case the risk of
loss or damage in transit is to be borne by you. If upon examination at
the Factory or Polk Audio Authorized Dealer it is determined that the
unit was defective in materials or workmanship at any time during this
Warranty period, Polk Audio or the Polk Audio Authorized Dealer will, 
at its option, repair or replace with new or reconditioned parts this
Product at no additional charge, except as set forth below. All replaced
parts and Products become the property of Polk Audio. Products
replaced or repaired under this warranty will be returned to you, 
within a reasonable time, freight prepaid.

This warranty does not include service or parts to repair damage caused
by accident, disaster, misuse, abuse, negligence, inadequate packing 
or shipping procedures, commercial use, voltage inputs in excess of 
the rated maximum of the unit, cosmetic appearance of cabinetry not 
directly attributable to defect in materials or workmanship, or service, 
repair, or modification of the Product which has not been authorized or
approved by Polk Audio. This warranty shall terminate if the Serial 
number on the Product has been removed, tampered with or defaced.

This warranty is in lieu of all other expressed Warranties. If this Product
is defective in materials or workmanship as warranted above, your sole
remedy shall be repair or replacement as provided above. In no event
will Polk Audio, Inc. be liable to you for any incidental or consequential
damages arising out of the use or inability to use the Product, even if
Polk Audio, Inc. or a Polk Audio Authorized Dealer has been advised 
of the possibility of such damages, or for any claim by any other party.
Some states do not allow the exclusion or limitation of consequential
damages, so the above limitation and exclusion may not apply to you.

All implied warranties on this Product are limited to the duration of this
expressed Warranty. Some states do not allow limitation on how long 
an implied Warranty lasts, so the above limitations may not apply to you.
This Warranty gives you specific legal rights, and you also may have
other rights which vary from state to state.

This Warranty applies only to Products purchased in the United States 
of America, its possessions, and U.S. and NATO armed forces exchanges
and audio clubs. The Warranty terms and conditions applicable to 
Products purchased in other countries are available from the Polk 
Audio Authorized Distributors in such countries.

“Polk Audio,” “The Speaker Specialists,” and “Power Port” 

are trademarks of Britannia Investment Corporation used under license 

by Polk Audio Incorporated.

POLK AUDIO LIMITED WARRANTY