JBL Project Everest DD66000 User Manual

Contents

Project Everest DD6600025CHAPTER 6Placement and Setup ConsiderationsThe Project Everest DD66000 loudspeaker system is designed to be lessaffected by room acoustics than conventional imaging systems. However, it isvery sensitive to overall symmetry and proximity to walls, ceilings and corners.Ideally, any listening room should contain a combination of live surfaces (e.g.,walls and windows) and absorbent surfaces (e.g., drapes, carpets, upholstery).If the distance between the floor and ceiling is minimal, it is preferable that onesurface has an absorbent covering. With Project Everest DD66000, it is veryimportant to be able to accommodate the optimal listening area that is definedby the 100° horizontal/60° vertical coverage pattern of the horn.In order to obtain the best stereo effect, the speakers should be placed at anequal distance from the listening position. The distances to the right and left speakers are determined by therelationship between the distance from the listening position to the speakersand the angles of the speakers. The imaging qualities enable the speakers tobe placed relatively far apart from each other, but this weakens centerimaging, such as vocals. Increasing the inward angle of the speakers towardthe listener will improve the center imaging. The listener should be centered infront of the speakers, and furnitureshould be of an appropriate height sothat when the listener is sitting, the earlevel is about the same height as thehigh-frequency horn (approximately35-1/2-inch/90cm), as illustrated on the right. The surrounding environment for the speakers affects bass quality. Placingthe speakers closer to the wall behind them or to the side walls will result inan abundance of bass, but placing them too close will result in dull bass. Onthe other hand, too much distance will reduce the bass output but result infast and sharp bass. The low-frequency alignment feature enables placing thespeakers near (or even in) a corner without producing an overabundance ofbass. This corner placement allows optimal performance, even in smallrooms. Find the most suitable location by using various source materials.