User manual JBL DD5500

[. . . ] While the Project Everest DD66000 is itself a new development, the goal that it achieves goes back to the earliest days of the original James B. However, it is the level of your listening pleasure that ultimately determines how successful we are in this endeavor. To ensure a perfect listening experience, we ask you to carefully follow the setup and operation procedures outlined in this Project Everest DD66000 User Guide. It contains all necessary background information and detailed instructions for setting up your Project Everest DD66000 loudspeaker system, including unpacking the loudspeaker, selecting the correct location, speaker wire, wiring method and amplification, and connecting it to its associated electronics. [. . . ] These are to be placed between the foot and the floor, should further protection of the floor coverings be required. Grille Removal The Everest DD66000 is shipped with its grille on the system. You can remove the grille with the following procedures. Step 1: Hold the lower parts of the grille with both hands and pull it up. Step 2: Pull the grille toward you in order to take the grille out of the pins from the cabinet. Step 3: Pull the grille down and remove it from the enclosure. Repeat the above procedures in reverse order in order to place the grille back on the enclosure. 20 Project Everest DD66000 CHAPTER 4 Selecting Cable Speaker wire and interconnecting cables are an important component in any audio system. With a system such as the Project Everest, they assume a new level of importance. The Project Everest loudspeakers are internally wired with proprietary, highquality copper cables, specially designed for JBL. The same care that was given to the selection of the internal system wiring should be afforded to the selection and application of the cables that will connect Project Everest loudspeakers to other system components. It is advisable to use high-quality wire and to select the highest grade wire available from the manufacturer. Many manufacturers produce audiophile cables worth considering for Project Everest. If two identical stereo amplifiers are chosen, each amplifier may be located near a loudspeaker and drive low-frequency and high-frequency sections through short wire runs. 23 A separate crossover network (not included) should be connected directly to the low- and high-frequency amplifiers driving this system, and is required if the system is to be bi-amplified. 24 Project Everest DD66000 CHAPTER 6 Placement and Setup Considerations The Project Everest DD66000 loudspeaker system is designed to be less affected by room acoustics than conventional imaging systems. However, it is very 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 one surface has an absorbent covering. With Project Everest DD66000, it is very important to be able to accommodate the optimal listening area that is defined by the 100° horizontal/60° vertical coverage pattern of the horn. In order to obtain the best stereo effect, the speakers should be placed at an equal distance from the listening position. · The distances to the right and left speakers are determined by the relationship between the distance from the listening position to the speakers and the angles of the speakers. The imaging qualities enable the speakers to be placed relatively far apart from each other, but this weakens center imaging, such as vocals. Increasing the inward angle of the speakers toward the listener will improve the center imaging. · The listener should be centered in front of the speakers, and furniture should be of an appropriate height so that when the listener is sitting, the ear level is about the same height as the high-frequency horn (approximately 35-1/2-inch/90cm), as illustrated on the right. · The surrounding environment for the speakers affects bass quality. [. . . ] The horns may also be wiped with a soft cloth. Treat the lacquered surface very carefully to avoid scratching the finish. To remove fingerprints and smudges, apply a small amount of diluted ammonia-free or alcohol-free neutral detergent to the cloth and gently clean the surface. Never use any abrasive cleaners or chemicals to clean the enclosure. [. . . ]