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The serial number is found on the speaker terminal panel on the back of the enclosure. Serial Number Serial Number Date of Purchase The contents of this manual are Copyright © 2011 by Atlantic Technology International, Corp., and may not be duplicated or reproduced by any means, whether physical, electronic or otherwise without prior written consent from Atlantic Technology International, Corp. Atlantic Technology and the Atlantic Technology logo are registered trademarks of Atlantic Technology International, Corp. Specifications are those in effect at the time of printing.Atlantic Technology International, Corp. reserves the right to change specifications or designs at any time without notice without obligation to modify existing units. AT-2 High Performance Loudspeaker with H-PAS™ Technology Thank you for choosing Atlantic Technology products.Your new speaker has been precision-crafted to give you years of enjoyable, trouble-free service. This manual covers the Atlantic Technology AT-2 speaker. It will show you how to incorporate these speakers into your present setup, as well as how to assemble a complete music or home theater system from them. The AT-2 can be used with all current and past sound formats including Stereo, all Dolby and DTS formats, DVD-Audio and SACD Audio. Introduction The Model AT-2 is a 2-way system of extraordinarily high performance intended for use in a top-quality music or home theater system. Its patent- pending H-PAS™ bass technology enables the AT-2 to deliver powerful low bass performance (-3 dB @ 44 Hz) not previously achievable with comparably- sized drivers in similar-sized enclosures. Each speaker contains one GLH (Graphite Loaded Homopolymer) 5 ." (135mm) woofer and an advanced 11.8" (28mm) ferrofluid-cooled, Low Resonance silk dome tweeter with an integral back chamber/heatsink. These components are mounted in an acoustically inert MDF enclosure, with special proprietary internal bracing, called CDFF™ (Cross Design Free Flow). This bracing makes the enclosure extremely rigid, while perfectly maintaining the internal airflow that is critical to its performance. IMPORTANT: Although it may seem like asking for driving directions, please take a few moments to read all of this booklet. It has many helpful tips and ideas on properly setting up and using your system. We promise that if you take the time to read and follow these tips you’ll get better system performance and more enjoyment. Instruction Manual Unpacking and Assembly 3 Unpacking the Speakers Use care when unpacking the speakers. Since the grilles are packed off the speakers, be particularly careful of the driver elements as you unpack and move the speakers. Remember to keep the original boxes and packing material, in the unlikely event the speakers need servicing, or if you move. Attaching the Grilles The included metal grilles are held to the front of the enclosures with powerful neodymium magnets. There are depressions on the back of the grille that the magnets fit into. Once the speakers are in their final position, remove the grille from its protective plastic bag and carefully position it over the magnets on the baffle. Move them together slowly and when you get close enough, the magnets will draw the grille in and hold it tight. Be careful not to get your fingers caught between the grille and the cabinet. Using the AT-2 on Speaker Stands Many high-quality speaker stands—like the Sanus® Ultimate Foundations®--use a through-bolt that goes through the stand’s top plate and attaches to a .”-20 threaded insert in the bottom of the speaker. If you are using speaker stands with your AT-2’s, we suggest using this type of stand, since it provides the most rigid assembly for the best acoustic performance, and the most secure installation for maximum safety. (See figure 1) ." x 20 insert AT-2 Figure 1 Top plate of stand with through-hole ." x 20 bolt Figure 2 AT-2 High-performance loudspeaker Placement Speaker/room interactions have a huge impact on the sound of the system. Moving the speakers just a little can make a dramatic difference in what you hear. Remember that the best acoustic placement of the speakers will vary from room to room. Use the following placement guidelines as a starting point. But also feel free to experiment. In fact, it may be beneficial to hook up the speakers with some extra wire and to simply drape the wire across the floor before installing the speakers permanently. This will allow you the opportunity to move the speakers around easily so you can find the best sonic and visual locations. Using the AT-2 in a 2-channel Music System When using the AT-2 as a 2-channel music speaker (in a “stereo” system), place the speakers approximately 6-10 feet apart, so the distance between the speakers is roughly equal to the distance from the speakers to the listening position. (See figure 3) Place the AT-2 on speaker stands or on furniture such that the tweeters are at approximate seated ear height. Begin...