Polk Audio 70-rt, 900-ls, 500-ls, 700-ls, 50-rt User Manual

LS Models

Modèles LS

Modelos LS

900

700-ls

500-ls

RT Models

Modèles RT

Modelos RT

-ls

90-rt

70-rt

50-rt

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS
READ BEFORE OPERATING EQUIPMENT

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings.
Install in accordance with the
manufacturer’s instructions.

8. Do not install near any heat sources
such as radiators, heat registers, stoves,
or other apparatus (including amplifiers)
that produce heat.

9. Refer all servicing to qualified service
personnel. Servicing is required when the
apparatus has been damaged in any way,
liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate
normally, or has been dropped.

10. WARNING: To reduce the risk of fire or
electric shock, this apparatus should not be
exposed to rain or moisture and objects filled
with liquids, such as vases, should not be
placed on this apparatus.

TAKE INVENTORY

Inside each speaker container, you should
find the following:

1. One In-Ceiling Loudspeaker

2. One Sheer-Grille

™

3. Mounting Template

4. Owner’s Manual

5. Registration Card
Important Note: If anything is missing or
damaged, or if your speaker fails to operate,
notify Polk Audio Customer Support Services
immediately at 800-377-7655.

INSTALLATION RECOMMENDATION
FOR OPTIMUM PERFORMANCE

Important Note: Vanishing Series Loudspeakers

are not magnetically shielded and should not be
placed closer than 1' (30cm) from a CRT (tube)
television or video monitor.

Important Note:Youshouldhaveathorough
understanding of and adhere to all local building
and fire codes. Also, you should be familiar with
the area behind the wall or ceiling into which you
plan to install your speakers. Always use wire that
meets appropriate building and fire codes. Wiring
is best performed by an experienced professional.

IMPORTANT INFORMATION BEFORE
YOU INSTALL YOUR LOUDSPEAKERS

Wall Or Ceiling Surface Preparation

If you’re installing your Vanishing Series speaker
into a heavily textured wall or ceiling (e.g. stucco
or popcorn finish), you must prepare the wall

surface immediately around the speaker
cutout. Sanding and smoothing the wall or

ceiling surface will ensure the speaker and
grille both seat properly and flat to the surface.

LOUDSPEAKER INSTALLATION
You will need:

 • Pencilformarkingthelocationofinstallation.
 • Keyholesaw,utilityknifeormaterial-

appropriate tool for cutting drywall
or other wall material.

 • Screwdriver,preferablypowered,
with Phillips Head bit.

 • Powerdrillwithappropriatebit
(optional, for starting wall cut).

Trace around the template.

Product Disposal—Certain interna-

tional, national and/or local laws and/
or regulations may apply regarding the
disposal of this product. For further
detailed information, please contact
the retailer where you purchased this

product or the Polk Audio Importer/
Distributor in your country. A listing of Polk Audio
Importer/Distributors can be found on the Polk Audio
website www.polkaudio.com or by contacting
Polk Audio at 5601 Metro Drive, Baltimore,
Maryland 21215, USA—Phone: [phone].

WARNING: Listen Carefully

Polk Audio loudspeakers and subwoofers are
capable of playing at extremely high volume levels,
which could cause serious or permanent hearing
damage. Polk Audio, Inc. accepts no liability for
hearing loss, bodily injury or property damage
resulting from the misuse of its products.

Keep these guidelines in mind and always use
your own good judgment when controlling volume:

 • Youshouldlimitprolongedexposureto
volumes that exceed 85 decibels(dB).

For more about safe volume levels, go to the
Occupational Health and Safety Administration
(OSHA) guidelines at http://www.osha.gov/dts/
osta/otm/noise/standards_more.html

When installing your loudspeakers, be aware of
the weight of your particular model and the sturdi­ness of the material into which you are installing
the speakers. Be aware of any concealed studs,
electrical wiring or plumbing in the wall or ceiling
into which you are installing the speakers.

If you doubt that you possess the necessary
skills or tools, consult your Polk Audio dealer
or a professional installer.

WIRE RECOMMENDATIONS

(minimum recommended)

Runs Gauge

Lengths up to 25' 18 or 16
Lengths greater than 25' 16 or 14
but less than 50'
Lengths greater than 50' 14 or 12
but less than 75'
Lengths greater than 75' 12

Cut the hole with the appropriate tool.

CROSSOVER WARNING

Exercise extreme caution when installing this
loudspeaker so you do not damage the crossover.

eyebolt

SECURITY EYEBOLT

YourVanishingSeriesin-ceilingloudspeaker

has an eyebolt on the back of the speaker that
can be used for an extra measure of installation
security. Follow standard building code installation
procedures in your area.

2 Polk Audio Customer Service: 1-800-377-7655 (Outside US & Canada: 410-358-3600) Monday-Friday, 9:00 AM-5:30 PM EST, [e-mail]

IMPORTANT INFORMATION SHOULD
YOU CHOOSE TO PAINT YOUR GRILLES

Because of its ultra-thin profile, the Vanishing
Series Sheer-Grille

™

requires a specific painting

procedure to ensure smooth, even coverage.

Important Note: Do not remove the grille
scrim before painting.

Paint Recommendation

We highly recommend you use a can of spray
paint matched to the ceiling color you want
the Sheer-Grilles to blend with.

Important Note: Never use a brush or
roller to paint the grilles, as this will clog
the perforated holes.

To paint the Sheer-Grille

1. Elevate the Sheer-Grille off of a flat surface.
This will ensure even coverage of the grille

frame and make it easier to pick up.
Mounting Idea: A single spray can cap

will raise the grille high enough.

2. Hold the spray paint about 12" from
the grille and at a 45° angle.

ROOM ENVIRONMENT CONTROLS

Room

Reflective / Norm

Room Switch
If your listening room is very reflective, with
smooth sheetrock walls, hardwood floors and
non-cushioned furniture, the sound will be
overly “bright” and unnatural.

Engaging the Room Switch (Reflective) compen­sates for the effect of reflectivity in a “hard room”
by attenuating only the portion of the tweeter
response that can cause harshness resulting
in listener fatigue. This flattens room response
without hindering higher frequency response,
for warmer, more realistic sound and more
accurate imaging.

If your listening room is not highly reflective,
that is it has curtains, carpeting, and cushioned
furniture, leave the Room Switch in its Normal
setting (Norm).

Wall Dist.

3. Apply one light, thin coat, moving evenly
side to side over the grille, then work your
way around the perimeter of the grille
to ensure you cover the grille frame.

4. After each application of paint, wait
approximately 1 minute, rotate the
grille 90°, and apply the next thin coat.
Important Note:Youmustrotatethegrille
90°. Use your hands to define the next 90°
rotation and always rotate the grille in the
same direction of travel.

>2'

<2'

(60cm)(60cm)

Wall Distance Switch (LS models only)
In-ceiling loudspeakers excel when placed

more than 2' (60cm) from side walls. If position
limitations demand that in-ceiling loudspeakers
be installed closer than 2' (60cm) from side walls,
the proximity of the surface can result in a response
“bump” between 50Hz and 200Hz. This can cause
in-ceiling speakers to sound “boomy.” The
“Wall Distance” switch flattens response
and eliminates “boominess” without sacrificing
deep bass response, for more lifelike sound.

5. Three light, even applications should cover
the grille and frame adequately. Remember
to work your way around the grille frame
to cover it evenly and completely.

For more information visit our website at www.polkaudio.com 3

DIMENSIONS

LS Models 900-ls 700-l s 500-ls

A. Overall Diameter
B. Cutout Diameter
C. Product Depth
D. Mounting Depth

(using 1/2" drywall)

RT Models 90-rt 70-rt 50-rt

A. Overall Diameter
B. Cutout Diameter
C. Product Depth
D. Mounting Depth

(using 1/2" drywall)

9 5/8" (244.48mm) 8 1/8" (206.38mm) 7 3/4" (195.58mm)

8 3/16" (2 07.9 5 m m) 6 1/2" (165.1mm) 6" (152.4mm)

9 3/8" (238.1mm) 8 1/2" (215.9mm) 9 3/8" (238.1mm)

8 7/8" (225.4mm) 8" (203.2mm) 8 7/8" (225.4mm)

9 5/8" (244.48mm) 8 1/8" (206.38mm) 7 3/4" (195.58mm)

8 3/16" (2 07.9 5 m m) 6 1/2" (165.1mm) 6" (152.4mm)

9 3/8" (238.1mm) 8 3/8" (212.7mm) 9" (228.6mm)

8 7/8" (225.4mm) 7 7/8" (200mm) 8 1/2" (215.9mm)

SPECIFIATIONS

For complete Vanishing Series specifications, visit www.polkaudio.com.

A

B

C

Drywall

D

4 Polk Audio Customer Service: 1-800-377-7655 (Outside US & Canada: 410-358-3600) Monday-Friday, 9:00 AM-5:30 PM EST, [e-mail]