Bedienungsanleitung Polk RT Models (Seite 3 von 16) (Englisch, Französisch, Spanisch)

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

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.

The grille scrim and perforated grille come

assembled and require no disassembly.

Paint Recommendation

We highly recommend you use a can of spray

paint matched to the wall 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 perf 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: Two spray can caps will

raise the grille high enough.

2. Hold the spray paint about 12" from

the grille and at a 45° angle.

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.

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.

SURROUND SPEAKER PLACEMENT

Polk Audio F/X

surround loudspeakers give you

nearly endless placement options. But remember

that where you place your surround speakers

requires some careful thought, as installation

requires that you cut a hole in your wall or ceiling.

Diagram shows speaker locations for 5.1

and 7.1 systems, when two additional in-wall

speakers are installed in the rear wall.

Left/Right Orientation: F/X

surround loud-

speakers have a left/right orientation, and each

speaker is clearly marked on the serial number

label on the back of the magnet for installation

on either the right or left. Right and left are

defined from your listening area as you face

your system’s center channel.

Center Channel Speaker Placement

Install the 255c-l s or 255c-r t as close as possible

to ear level. If the speaker needs to be installed

higher, aim the tweeter down as required.

Do not block the center channel with

your TV or furniture.

Please Note: For more on speaker placement go

to: www.polkaudio.com/education/article.php?id=15

or www.polkaudio.com/downloads/hthandbook.pdf

ROOM ENVIRONMENT CONTROLS

Imaging (65f/x-l s model only)

F/X Surround Loudspeakers offer switchable

“Diffuse” and “Solid” imaging patterns

to create the surround effect you desire.

A “Diffuse” image is defined as one which

creates a “cloud” of sound; think of the effect

as ambient sounds which fill the environment

all around you, but are less localizable.

A “Solid” image is one which creates a more pin-

point sound; sound is more localized. The location

of sounds in the sound field is more identifiable.

Tweeter Switch

(LS and RT models except F/X models)

Filter—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. Selecting the “Filter”

setting compensates for the effect of reflectiv-

ity in a hard room. Tweeter attenuation flattens

room response, without hindering higher frequency

response, for warmer, more realistic sound

and more accurate imaging.

Norm—If your room is not reflective, with curtains,

artwork, lots of cushioned furniture and carpeting,

sound will be absorbed by the room, resulting in

more realistic reproduction and more accurate imag-

ing. In this case, select the tweeter “Norm” setting.

Wall Distance Switch (65f/x-r t and

all LS Models except the Center Channel)

In-wall loudspeakers excel when placed more

than 2’ (60cm) from side walls. If position

limitations demand that in-wall loudspeakers

be installed closer than 2’ (60cm) from side walls

or ceiling, the proximity of the surface can result

in a response “bump” between 50 and 200Hz.

This can cause in-wall speakers to sound “boomy.”

The “Wall Distance” switch flattens response

and eliminates “boominess” without sacrificing

deep bass response, for more lifelike sound.

Filter / Norm

Tweeter

Wall Dist.

>2'

(60cm)(60cm)

<2'

Diffuse / Solid

Imaging

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