User manual ATLANTIC TECHNOLOGY SYSTEM 250 INSTRUCTION MANUAL

[. . . ] Each speaker has one 4" polypropylene woofer, as well as two 3-1/2" polypropylene mid-tweeters that are angled and phased to produce ambience without localization for movie surround sound tracks. Although the speakers in the Atlantic Technology System 250 are acoustically and cosmetically matched to each other, they may also be used with a wide variety of other speaker systems. Note: The 254 SR is not intended for use as a regular right and left front channel stereo speaker or satellite. Its spatial performance characteristics are not designed for this purpose. [. . . ] The left front and right front speakers should be far enough apart that you get a good stereo image, but not so far apart that the sound seems to come directly from the speakers, distracting you from the picture. If you are using a center channel speaker, a wider separation of the left and right front speakers is usually possible. The Model 253 C should be placed directly on or under your television. Place the speaker base so that the foot cutouts are facing forward. Then, set the speaker on its base and tilt the speaker so that it points directly at the listener. The 254 SR's size and shape allows greater flexibility in placement than most conventional surround loudspeakers. Due to their spatial characteristics, it is possible to place the speakers virtually anywhere, but usually the best location is nearly straight out to the sides of the primary listening area, either at ear level or 1-2 feet above. Figure 3: Typical arrangement for speakers in a home theater. For best results, place the surround speakers within the shaded areas. 4 Models 251 LR, 253 C, and 254 SR tlantic ATECHNOLOGY Music Only System (Model 251 LR only) If you are setting up a music only system, begin with these general guidelines: q The distance between your speakers should be about one-half their distance from your favorite listening position. 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. q q q 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. 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. Figure 4: Timbre adjustment control knobs on back panel of 253 C Center Channel Speaker. 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. [. . . ] Even rugged speakers like System 250 can be damaged by a moderately powered system driven beyond its intended capacity. The harsh amplifier clipping that occurs in this situation will cause damage to the speaker system that is not covered by the warranty. The System 250 will play very loudly when provided with enough power to do so. Again, consult your dealer or Atlantic Technology for additional information. Care of your Speakers Clean your speaker cabinets using a soft cloth moistened with a mild, non-abrasive glass cleaner being careful not to wet the individual drivers or the edges of the cabinet. [. . . ]