AT-1
High Performance Loudspeaker with H-PAS™ Technology
Manual Instruction
|
|
2 |
Table of Contents |
|
AT-1 High Performance Loudspeaker with H-PAS™ Technology
Table of Contents
2Introduction
3Unpacking the Speakers
3Attaching the Feet
3Attaching the Grilles
3Glass Tops
4Placement
4 Using the AT-1 in a 2-channel Music System 4 Using the AT-1 in a Home Theater System
6Connecting Your Speakers
6Conventional Connection
6Bi-amp Connection
6Wire Management System
7System Wiring
8High Frequency Energy Control
9Caring for Your Speakers
9 Specifications
For Future Reference
Record the serial number and date of purchase for each speaker here.The serial number is found on the speaker terminal panel on the back of the enclosure.
Serial Number
Serial Number
Date of Purchase
AT-1
High Performance Loudspeaker with H-PAS™ Technology
Thank you for choosingAtlantic 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-1 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.TheAT-1 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-1 is a 2-way system of extraordinarily high performance intended for use in a top-quality music or home theater system.Its patentpending H-PAS™ bass technology enables the AT-1 to deliver powerful low bass performance (-3 dB @ 29 Hz) not previously achievable with compa- rably-sized drivers in similar-sized enclosures.
Each speaker contains two GLH (Graphite Loaded Homopolymer) 5 ¼" (135mm) woofers and an advanced 11⁄8" (28mm) ferrofluid-cooled, Low Resonance silk dome tweeter with an integral back chamber/heatsink.The drivers are configured in an M-T-M array (midrange-tweeter-midrange alignment).This vertical arrangement of drivers provides wide left-to-right coverage of sound while limiting the floor and ceiling reflections that can color the sound. 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.
The contents of this manual are Copyright © 2010 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 theAtlantic 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.
Unpacking and Assembly |
3 |
|
|
|
Instruction Manual
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 Feet
The cast aluminum feet with spikes are shipped unattached to the speaker. We recommend you attach the feet before proceeding to any other aspect of setup and installation.
Attach the feet to the bottom of the speaker cabinet as shown. The spikes can be adjusted to level the speaker. Circular metal discs are provided to protect hardwood floors.
Attaching the Grilles
Figure 2 |
Installing the glass top |
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.
Glass Tops
Decorative smoked glass tops are provided for the AT-1 to complete its elegant appearance.Attach the four self-adhesive rubber pads to the top of the cabinet as shown to prevent vibration and place the glass on top of the cabinet with the bevel towards the front.(See figure 2)
Figure 1
Attaching the feet
Attach feet to threaded inserts in bottom of cabinet with supplied screws.
Screw tips into foot. Adjust to level speaker.
Optional tip "toes" protect hardwood floors.
Figure 3
AT-1 High-performance loudspeaker
|
|
4 |
Placement |
|
AT-1 High Performance Loudspeaker with H-PAS™ Technology
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-1 in a 2-channel Music System
When using the AT-1 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 4) Begin with the AT-1 about 1 foot away from the wall behind it. Moving it closer to the wall will increase the apparent bass balance; pulling them farther away will yield a somewhat “leaner” bass balance.Experiment with the positioning to achieve the most satisfying balance in your room.
The AT-1 has very wide horizontal dispersion, due to its Low Resonance Tweeter (LRT™) design and low woofer-to-tweeter crossover frequency. Therefore, it’s not necessary to“toe in” the speakers as one ordinarily does with conventional speakers. However, this is also a matter of individual preference, so again we encourage you to experiment and find the degree of sonic imaging precision that you find most pleasing.
Using the AT-1 in a Home Theater System
The AT-1 works extremely well as part of a home theater system. In such a system, place the AT-1’s on either side of the television.The left and right front speakers should be far enough apart (6 to 10 feet, 2-3 meters, is usually best) that you get a good stereo “image” when they are playing alone, but not so far apart that the sound seems to be disembodied from the TV, distracting you from the picture.
Like all Atlantic Technology speakers,the AT-1 is tonally“voiced” to mix and match with our other models. The 4400 C or 6200e C both make excellent center channel speaker companions to the AT-1 LRs in a home theater system.
When using a center channel speaker in a home theater system, a wider separation of the left and right front speakers is usually possible than in a conventional 2-channel stereo system. Therefore, you may choose to toe in the AT-1 LR speakers slightly, aiming them towards the prime listening position.(See figure opposite)
IMPORTANT: Try to keep the AT-1’s and Center channel speaker’s tweeters at approximately the same height (within about 18” of each other) and aimed at ear level when seated. This is because we’ve designed the alignment of the drivers on the front panel to limit the vertical spread of the mid and high frequencies, thereby reducing the floor and ceiling reflections that can adversely affect sound quality. The AT-1’s driver alignment provides an enhanced horizontal spread of the sound, making for a much better sound experience for a group of listeners and reducing the need to sit in a precise “sweet spot.”
Figure 4
2-channel music configuration
Left |
Right |
Setting Bass Management
Even though the AT-1 delivers strong, deep bass response on its own, it is nonetheless desirable to use a powered subwoofer in a home theater system for the following reasons:
1.The bass level of the powered subwoofer is controllable by the receiver’s remote control.This is an extremely important feature to being able to“dial in” a satisfying bass level for your home theater system from your listening chair.
2.When employingAT-1 speakers (along with a powered subwoofer) in a theater system,set your receiver’s setup menu to“Subwoofer— Yes,” and set your front speaker configuration to “Large” or “Full Range” (depending on how your receiver labels it). This will effectively give you three subwoofers in your home theater system, all residing in different physical locations throughout your listening room.Not only will having three subwoofers give you a higher level of undistorted, high-impact bass in your system, having them at different physical locations will randomize and smooth out the bass modes and standing waves in the room, resulting in a more uniform bass response with fewer room-caused ‘hot spots’ and ‘cancellations.’
Follow your receiver and powered subwoofer manufacturers’recommendations for bass crossover setting and subwoofer placement.Generally,it’s best to set the receiver’s subwoofer crossover no higher than 80 Hz, in order to maintain non-localizability of the stand-alone powered sub.
Loading...