User manual ATLANTIC TECHNOLOGY SYSTEM 20 SR INSTRUCTION MANUAL

[. . . ] System 20 LCR and SR InWall Theater System Speakers System 20 LCR and SR InWall Speakers GGGGGGGGGGG 1 GGGGGGGGGGG 343 Vanderbilt Ave. Norwood, MA 02062 (781) 762-6300 www. atlantictechnology. com Instruction Manual System 20 LCR and SR InWall Speakers System 20 THX Installation Instructions About These Speakers System 20 by Atlantic Technology is a high performance home theater and music sound speaker system designed to mount in the walls of your home. The system consists of a three-way full range front satellite, System 20 LCR, and a switchable Dipole/Bipole surround speaker, System 20 SR. We recommend completing the system (especially for movie reproduction) with the addition of a THX certified subwoofer like the Atlantic Technology 372 PBM. [. . . ] They should be located no less than Dipole speaker sound radiation 18 inches above ear height when seated and at least 24 inches below ceiling level. If the surround speakers must be located closer than 24 inches to the ceiling they should be turned upside down to keep the tweeters as far as possible from the ceiling. Please see the important note below. System 20 SR surrounds are designed to mount horizontally, on the side walls. If they must be placed on the back wall or the ceiling please follow these guidelines. On the rear wall, install the speakers horizontally at least 24 inches away from the corner, and between 18 inches above ear level when seated and 24 inches down from the ceiling. If placed in the ceiling, position them with the drivers facing the front and back of the room with the GGGGGGGGGGG 4 GGGGGGGGGGG System 20 LCR and SR InWall Speakers Left speaker to the left side of the room and the Right on the right side. As much as possible keep the null centered on the prime listening position. IMPORTANT: Please note that there are dedicated left and right Dipole surround speakers and they are labeled as such. This is done to ensure that the drivers facing the front of the room are in phase with the system's front speakers. Left and right refer to the left and right wall when you are seated facing the screen. There is no practical benefit to mounting the speaker horizontally, unless there is an issue of limited vertical space or aesthetics. If you wish to mount the speaker horizontally in a 16 inch on center wall, modifications will have to be made to the wall framing. Rotating and Tilting the Mid-high Baffle If mounting the 20 LCR horizontally, remove the 8 mid/high baffle mounting screws and rotate the baffle 90 degrees as shown in Fig. At the same time determine whether the mid/high baffle should be level or tilted up or down. If the speakers are significantly above or below ear level (more than 2 feet) when seated, the baffle should be tilted to compensate. While the 8 screws are removed, lift the mid/high baffle from the speaker and remove the leveling spacer located under and within the baffle. The spacer is taped to the baffle at the top edge, so cut through the tape before trying to remove the spacer. The spacer is flexible and can be removed without disconnecting any wires. Simply lift one corner of the spacer over the baffle corner and then spread the spacer while removing it the rest of the way. 5 Rotate the baffle to achieve the desired tilt and reinstall using the same 8 screws, being careful not to overtighten them. There is a strip of self adhesive acoustic foam included in the Owners Manual packaging that should be attached to the flat section of the woofer baffle or bezel assembly that has been exposed by tilting the baffle. GGGGGGGGGGG 5 GGGGGGGGGGG System 20 LCR and SR InWall Speakers Infrared Eye Repeater Opening There's a cutout located on the front of the System 20 LCR that's designed to accept most IR repeater receivers. This cutout is located under the round Atlantic Technology "Wave logo" adjacent to the woofer. To remove the Wave logo simply push it out from behind. Rear Enclosure and Internal Wall Treatment An optional enclosure is available for the System 20 LCR (IN-BOX-20LCR). [. . . ] Carefully position the speaker assembly into the wall cutout and Installation Bracket. Check that it's level and then attach the speaker to the Installation Bracket with the included 3 inch #6 self-tapping screws. (If the assembly is not level, you can oversize the wall opening very slightly to allow straightening the bracket and speaker. ) Step 6. Tighten the mounting screws, which in turn will cause the bezel and the Installation Bracket to clamp the wall board between them. [. . . ]