User manual ATLANTIC TECHNOLOGY SYSTEM 4200E

[. . . ] Instruction Manual System 4200e THX Select High Performance C. O. R. E. Technology Loudspeaker Components 2 Table of Contents System 4200e High Performance Loudspeakers Table of Contents 2 2 2 3 3 C. O. R. E. Technology Unpacking the Speakers Attaching the Grilles What's THX?Individual Component Descriptions System 4200e THX Select High Performance C. O. R. E. [. . . ] 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 (see opposite page) as a starting point. In fact, it may be beneficial to hook up the front LR and surround 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. 6. 1 and 7. 1 Channel Systems For best performance in a 7. 1 channel system, we recommend using another pair of 4200e LR's on the back wall, and 4200e SR's on the side walls. If you are setting up a system that uses back surround speaker(s) as well as side surrounds (Dolby Digital EX, DTS ES, etc. ) you can choose to use either SR model speakers in Dipole or Bipole mode or another pair of front LR speakers in the back of the room. If the 4200e SR's are used as back surrounds in a 6. 1 or 7. 1 channel system, they should be installed with the Right speaker placed over the listener's left shoulder and the Left speaker placed over the listener's right shoulder; these back surrounds should be placed approximately 150 degrees from the screen on the back wall. About one-third of the way out from the corners in most rooms is a good starting point. If you are using a THX Ultra 2 certified controller/receiver, you should place the back surround speakers approximately 1 to 2 feet (. 3, . 6m) apart in the center of the back wall. The special circuitry in the processor will help to create a believable and effective surround field using this placement. Please read the electronics manual to learn more about this placement option. Home Theater Remember that the primary goal of a good home theater is not to make you believe that you are in a movie theater. For a home theater system, place the LR speakers on either side of the television. The three front channel speakers (LR and C) are magnetically shielded so they will not interfere with your television picture. 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. When using a center channel speaker, a wider separation of the left and right front speakers is usually possible. You may chose to "toe" the LR speakers in, aiming them approximately at the prime listening position. This can be particularly useful if the front LR speakers are fairly far apart. IMPORTANT NOTE Try to keep the LR and C tweeters at approximately the same height 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 adversely affect sound quality. If the speakers are too high or too low however, you will miss a significant portion of the upper middle and high range elements of the sound. These holes are revealed when you loosen the connector's capscrew. Screw down the capscrew tightly, but be careful not to over tighten it. Check the tightness of the capscrews 24 hours after hookup and occasionally after that, as they can loosen over time. The goal is to reproduce the most accurate musical timbre and the most convincing natural sound. [. . . ] Hold the meter with the microphone pointed up, towards the ceiling and in front of you. Cycle the test tone from speaker to speaker, setting each to the same level (usually75dB) using the individual level settings available in the processor/receiver (please see the instructions for your processor/receiver if you are unsure of how to access the test signal or level controls). IMPORTANT NOTE: The power recommendation for these speaker systems assumes that you will not operate your amplifier/receiver in a way that produces distortion. Even rugged speakers like these can be damaged by an amplifier driven into audible distortion. The harsh amplifier distortion ("clipping") that occurs in this situation will eventually cause damage to the speaker system. [. . . ]