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tlantic
Models 251 LR, 253 C, and 254 SR
5
Music Only System (Model 251 LR only)
If you are setting up a music only system, begin with these general guidelines:
●
The distance between your speakers should be about one-half their distance from
your favorite listening position.
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The front of the speakers should point straight at you.
●
The distance from each speaker to its three closest room surfaces should be different.
●
In most rooms, you should not place your speakers in the corners.
Next, be creative! Try placing your speakers along the long wall instead of the short one.
Toe the speakers in or point them straight ahead. Pull them away from the wall or push
them close. Don’t be timid. You will find that moving your speakers, even a few inches,
can greatly change their sound.
Timbre Adjustments (Model 253 C only)
The home theater experience is best enjoyed when sounds remain consistent in tonal
balance when panned across the soundstage. For that reason, the Atlantic Technology
System 250 was designed with acoustically matching drivers.
To help achieve this goal when using front speakers from another manufacturer, we
have provided two controls (Figure 4) on the rear of the 253 C enabling you to adjust its
tonal characteristics to emulate those of your front left and right speakers.
Begin the adjustment procedure by turning both control knobs to the “251” position.
This approximates the Atlantic Technology 251 LR speakers. Next, use your Dolby Pro
Logic receiver/decoder’s “test” mode to generate “hiss” from each speaker and adjust
the 253’s controls for the closest match.
Although a perfect match is not usually possible, fine tuning the controls while watching
high quality movies will generally yield excellent results. If most of your listening is Dolby
Stereo movies, you may wish to adjust both controls to compensate for the natural
brightness of many movie soundtracks. You may use the Cinema EQ position as a guide.
Note: Some Dolby Pro Logic decoders and receivers offer a choice of “normal” or “wide-band”
modes for the center channel. The Model 253 C was designed to be used in the “normal” mode.
Figure 4:
Timbre adjustment
control knobs on
back panel of
253 C Center
Channel Speaker.