Harman Kardon AVR80 Owners Manual - Page 21

AVR80 manual 11/01/98 13:01 Side 15 System Configuration 15 ENGLISH When all audio, video and system connections have been made, there are a few configuration adjustments to be made. A few minutes spent to correctly configure and calibrate the unit will greatly add to your listening experience. Speaker Selection and Placement The placement of speakers in a multi channel home theater system can have a noticeable impact on the quality of sound reproduced. For Home THX operation it is recommended that the speakers carry the certification mark of Lucasfilm Ltd.'s Home THX Division. However, with careful selection and placement, the AVR 80 will deliver accurate reproduction with any high quality speakers. No matter which type or brand of speakers are used, the same model or brand of speaker should be used for the front left, center and right speakers. This creates a seamless front soundstage, and eliminates the possibility of distracting sonic disturbances that occur when a sound moves across mis-matched front channel speakers. For the most accurate and exciting reproduction of bass frequencies a separate subwoofer should be used. When THX Certified front channel speakers are used a separate subwoofer is mandatory, as THX front and center speakers are not designed for extreme low frequencies. The AVR80 may be used with either conventional (point source) surround speakers or with THX Certified diffuse surround speakers. No adjustment is needed to select the type of surround speaker used. Speaker Placement For best imaging, it is recommended that the center channel speaker be placed in line with the left and right speakers. It should be placed above the center of TV monitor or rear screen projector, with the speaker as close to the top of the screen as possible. If possible, adjust all front speakers to aim at ear height when seated in the listening position. Once the center speaker is positioned, adjust the height of the left and right speakers so the tweeter of those speakers is no more than 60cm off center from the tweeter on the center channel speaker. Note that many THX Certified speakers must be placed vertically, while others may be placed horizontally. Consult the instruction manual accompanying your center speaker for the correct mounting position. No more than 60 cm Center Front Speaker Left Front Speaker Right Front Speaker A) Front Channel Speaker Installation with Direct View TV Sets or Rear Screen Projectors Left Front Speaker Right Front Speaker No more than 60 cm Center Front Speaker B) Front Channel Speaker Installation with Non-Perforated Front Projection Screen Left Front Speaker Center Front Speaker Right Front Speaker C) Front Channel Speaker Installation with Center Speaker behind a Perforated Front Projection Screen