Atlantic Technology 171 LR Manuel d'instruction - Page 5

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Figure 3:

Typical arrange-

ment for speakers in

a home theater. For

best results, place

the surround

speakers within the

shaded area. Note

that the surround

speakers are marked

Left and Right. It is

important that the

speakers be placed

correctly for proper

imaging.

Operation of the HI FREQ LEVEL Control

The HI FREQ LEVEL control works like a treble tone control, giving you more or less high frequency

output from the speaker. You can compensate for overly bright soundtracks or "punch up" a dull

Figure 4:

Hi-Freq Level

Control on rear

panel of the

Model 173 C.

Note: Some surround sound decoders and receivers offer a choice of "Normal" or "Wide-band" modes for

the center channel. The Model 173 C was designed to be used in the Normal mode. Additionally, some

discrete digital home theater systems allow Bass Management, letting you select between "Small" and

"Large" speakers system-wide. Since System170 is designed to work with a subwoofer, please set all the

speaker positions to Small.

Surround Effects

The 174 SR's size and shape allows greater flexibility in placement than most conventional surround

loudspeakers. Due to their dipole design's spatial characteristics, it is possible to place the speakers

almost anywhere within the rear third of the room, but usually the best location is straight out to the

sides of, or slightly behind the primary listening area, approximately 1-2 feet above ear level.

Note: Surround speakers are intended to re-create the ambient sounds in a movie scene. Throughout most of

a movie or TV program you may not be directly aware of the surround speakers presence. So it's OK if you

aren't aware of hearing the surround speakers directly. Turning the surrounds up so that you hear them all

the time will only result in a much less believable surround sound experience. Remember that the signal they

receive is 99% subtle sounds that should make you believe you're in the action up on the screen.

Surround

speaker

should be

no closer

than 2' from

the ceiling

Left surround

speaker

Ear level

Null point of surround

speaker in line with

listening position

soundtrack. Turning this control clockwise increases the high frequency level; turning

it counterclockwise reduces it. The HI FREQ LEVEL control also allows you to adjust

the overall sonic balance of the 173 C to more closely match the LR speakers even

though the 173 C is placed directly above or below the TV screen. It may be best to use

the test tone built into your receiver to adjust the overall sound of the 173 C to match

the LRs once the speakers are placed in their proper locations.

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Center channel should be within

2' of front speaker tweeter height

Right

surround

speaker