User manual JBL DD66000MA

[. . . ] 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. [. . . ] Cut tapes at the corners of the bottom cardboard (drawing VI), slide the loudspeaker system out toward you, together with bottom endpads (drawing VI-2). Lift the system slightly on the right and left, in turn, to remove the bottom endpads. VI VI-2 VII VIII Products are shipped with round-tipped spikes on the bottom of the cabinet. If you would like to use pinpoint spikes, remove round-tipped spikes and replace them with pinpoint spikes. In case they are hard to loosen, please use an 11/16inch (18mm) wrench. 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. 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. Due to the power-versus-frequency distribution of the music, the low-frequency section requires approximately four times the power of the high-frequency section. ) Project Everest DD66000 dealers can recommend amplification to best suit individual needs. In all cases, the left and right amplifiers for each section must be identical. Make sure that the input sensitivity of the two amplifiers is equal or that input level controls are provided to maintain the proper low to mid/high balance. 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. [. . . ] There may be subtle tonal changes in bass output over the first week to 10 days of operation. These are caused as the movement of the low-frequency drivers becomes more fluid and the parts settle in. This process is completely normal and natural with transducers of this caliber. Even during this initial period, there is no restriction on the amount of amplification that may be applied. [. . . ]