Harman Kardon AVP-1 Owners Manual - Page 4

MEM MEM I speakers immediately beside a small screen usually reduces stereo separation to unacceptable levels. Some experimentation may be in order, but as a rule of thumb, try to place the UR front speakers no more than 18" to 24" from the sides of the screen. Try to avoid placing the L/R front speakers to close to side walls or room corners. They should usually be placed no closer than 18" to 24" from corners and side walls. Conventional speakers should be toed in slightly towards the seating areas. THX-certified speakers will usually require no toe-in, however some toe-in will assure even lateral coverage of the seating area and reduced side-wall reflections. THX LCR speakers are designed to be used vertically only. If they must be either above or below the screen they must be properly aimed towards the listener. Proper aiming is critical because THX speakers are intentionally quite directional in the vertical plane to focus sound energy to improve dialogue intelligibility and image localization. The Center speaker should be directly above or below the screen. When possible, try to keep the center speaker tweeters as close to the level of the tweeters in the L/R speakers (no more than a two foot difference), so that lateral audio pans do not create noticeable changes in vertical localization. Placing the LCR speakers below the screen is preferable since aiming Set-up and Tuning Speaker Placement: Front Speakers SCREEN figure 2 LESS THAN 2 FEET them upward maximizes the usable listening area. Placing the Center speaker directly in front of a television is fine as long as it does not obscure any portion of the screen, provided it is magnetically shielded. All THX LCR speakers are magnetically shielded. SUBWOOFER PLACEMENT Subwoofers do not have to be placed extremely close to the front channel speakers but placement will affect the low bass. Leave yourself some leeway during final installation for minor movements to minimize room modes. corner placement will yield the most deep bass, but this excites the maximum number of standing waves resulting in uneven frequency response. Use of multiple subwoofers will increase bass output and allows one subwoofer to smooth irregularities created by room modes. Placement near a video projector is acceptable since all THX subwoofers are magnetically shielded. 3