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JBL DD66000 manual

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Table of contents for the manual

  • Page 1

    Project EVEREST DD66000 Project EVEREST DD66000 Product Commentaries and User Guide Thank you for purchasing Project EVEREST DD66000 loudspeaker system. Before using the system, please take time to read through this user guide to understand well on this product and a lso to use it properly.[...]

  • Page 2

    User's Guide Table of Contents Chapter 1 Preface Chapter 2 Legacy Chapter 3 Project EVEREST DD66000 Chapter 4 Unpacking Chapter 5 Selecting Cable Chapter 6 Amplifier Recommendations Chapter 7 Placement and Set - up Considerations Chapter 8 Switch Operations Ch apter 9 Connections Chapter 10 Care and Maintenance Chapter 11 Troubleshooting and S[...]

  • Page 3

    Project EVEREST DD66000 CHAPTER 1 Preface JBL wishes to thank you for selecting a Project EVERE ST DD66000 loudspeaker s ystem . It represents the sum total of our research and developmental efforts in sound reproduction over the last half century. We have labored to create a loudspeaker system with no acoustical or electrical limitations whatsoeve[...]

  • Page 4

    CHAPTER 2 Legacy - the historical development of the JBL Project loudspeakers Of those few who seek perfection in sound reproduction, only a handfu l have actually achieved it. The price is always high. It is a rare occurrence indeed when an individual or group is able to triumph over the constraints of economic and technological reality just once.[...]

  • Page 5

    Project EVEREST DD66000 In this respect, Project EVEREST DD660 00 is at once the most advanced and sophisticated loudspeaker in the world today and a speaker whose technology is deeply rooted in over 6 0 years of tradition. JBL's president in 1954, Willia m Thomas, described the Hartsfield as "...the speaker system we have always wanted t[...]

  • Page 6

    Since Project Everest was introduced, sound recording and playback technology has undergone a revolution of its own. With the advent of CD, extremely demanding recorded signals had become the rule ra ther than the exception - the average source material used by the typical audio enthusiast had become superior to the best demonstration material of e[...]

  • Page 7

    Project EVEREST DD66000 As an outcome of the K2 development, a loudspeaker system with high e r sensitivity and wide r dynamic range became reality without power compression or distortion even at an extremely high drive level. The development of the Project EVEREST DD6600 0 l oudspeaker sy stem wa s started as a celebration of JBL’s 60 th Anniver[...]

  • Page 8

    CH APTER 3 The Project EVEREST DD66000 loudspeaker: a triumph in acoustics and technology The following sections describe the primary features and components of the Project EVEREST DD66000 loudspeaker system. The basic system configuration i s what JBL has historically refe rred to as an augmented 2 - way. In the 1950’s and 1960’s JBL built pri[...]

  • Page 9

    Project EVEREST DD66000 The transducers, horns an d crossover networks are housed in a visually stunning enclosure that is reminiscent of both the H artsfield and Paragon systems. The specially curved baffle provides the sidewalls for the main horn. The top and bottom horn flares are accomplished by the a tta chment of precision molded Sono G las s[...]

  • Page 10

    T RANSDUCERS The 150 1 AL Low Frequ ency Drive r See F ig u re 2 The 1501A L Low Frequency driver is very similar to the 1500A L used in the S9800 system. It incorporates a new high impedance voice coil to allow a pair of woofers to be used while still maintain ing an 8 ohm system impedance. The voice coil length has been increased to 30.5 mm (from[...]

  • Page 11

    Project EVEREST DD66000 even - order distortion components. All suspension elements are tailored for maximum mechanical displacement linearity. The cone is comprised of a special layered paper pulp matrix with proprietary Aquaplas ™ damping which offers more pistonic behavior throughout the woofer’s operating bandwidth, and controlled cone brea[...]

  • Page 12

    A high purity copper sleeve is used for the pole piece . This greatly improve s the electrical conductivity of the copper sleeve for lower coil inductance and thus greater high frequency output at 15 kHz and above. T he copper sleeved pole quickly wick s away heat generated by the coil and contributes in reduction of dynamic power compression. To c[...]

  • Page 13

    Project EVEREST DD66000 These features, when taken as a whole, create a new large format compression driver with the greatest high frequency extension, lowest distortion, smoothest response and greatest sonic detail. 045Be - 1 Ultra - High F req uency Compression Driver and Horn Like the 045Be, the 045Be - 1 uses a 25 - mm beryllium diaphragm and 5[...]

  • Page 14

    Internal Crossover Networ k The circuit topology, combined with the acoustic behavior of the 1501A L and 476Be provides a 24 dB - pe r - octave transition at 700 Hz. This is the primary crossover point of the system. Additionally, t he 045Be - 1 is turned on above 20 kHz to provide exten ded response to beyond 50 kHz. A second 1501A L woofer is use[...]

  • Page 15

    Project EVEREST DD66000 CHAPTER 4 Unpacking the Project EVEREST DD660 00 System All components of the Project EVEREST sy stem have been very carefully packed for maximum protection against damage. As with any superior audio product, it is advisable to keep the original packing materials in case it is necessary to transport the P roject EVEREST syst[...]

  • Page 16

    VI . Cut tapes at the corners of the bottom cardboard (drawing VI), slide out the loudspeaker system toward you together with bottom endpads (drawing VI - 2). VII . Lift the system slightly on the right and left in turn to remove bottom endpads . VIII . Remove the protective non - wovens. VI VI - 2 VII VIII Products are shipped with round - tipped [...]

  • Page 17

    Project EVEREST DD66000 CHAPTER 5 Selecting Cable Speaker wire and interconnecting cables are an important component in any audio system. With a system such as the P roject EVEREST , they assume a new level of criticality. The P roject EVEREST loudspeaker s are internally wired with propriet ary high quality copper c able s , specially designed for[...]

  • Page 18

    CHAPTER 6 A mplifier Recommendations No single type of amplifier is specified for use with the P roject EVEREST DD66000 system. The spe akers are highly efficient and will operate adequately with an amplifier or receiver of 70 - 100 watts. Howev e r , the transient response and audio definition of a high - end system such as P roject Everest DD6600[...]

  • Page 19

    Project EVEREST DD66000 CHAPTER 7 Placement and Set - up 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, proximity to walls, ceilings and corners. Ideally, any listening room should contain a combinat[...]

  • Page 20

    fast and sharp bass. T he low frequency alignment feature enables placing the speakers near or even in a corner without producing a n over - abundance of bass. This corner placement ability allows optimum performance even in small rooms . Find the most suitable point by using various source materials. The Project EVEREST DD66000 requires right or l[...]

  • Page 21

    Project EVEREST DD66000 CHAPTER 8 Project EVEREST DD6 60 00 Switch Operations The EVEREST DD66000 has 2 control panels under the cover at the center bottom of the front baffle. Shorting bars or switches inside the control panel enable to switch orientation of the system and biamplifier and also to adjust woo fer and high - frequency level s . They [...]

  • Page 22

    receives th e low and which woofer receives the midrange signals. One system should be set to “left” and be positio ned as the left speaker system. The other system should be set to “right” and be positioned as the right speaker. HF Drive / LF Drive This allows to s witch normal drive using a set of amplifiers and bi - amp drive using 2 set[...]

  • Page 23

    Project EVEREST DD66000 HF Level This switch adjusts the attenuation applied to the 476Be (hi gh frequency or HF unit) by approximately 0.5 dB over the range of 1 , 000 Hz to about 8 , 000 Hz. The action is accomplished by trimming the main attenuation resistors. Mid - range sound becomes calm b y reducing level and b righter b y increasing level. [...]

  • Page 24

    Battery Installation The network of this system utilizes the proprietary JBL “ charge - couple method ” to activate capacitors by applying DC bias usin g battery and this eliminates unwanted distortions. Please refer to procedures below and install the supplied batteries on the battery holders. Battery Installation Procedures: 1 . Remove the co[...]

  • Page 25

    Project EVEREST DD66000 resistor (2.2 M O ) and thus , draws no appreciable current. The expiration date printed on the battery generally coincides with the need to replace the batteries. Each capacitor position is actually made up of two c apacitors connected in series. The battery voltage is appl ied to the center connection of the two c apacitor[...]

  • Page 26

    CHAPTER 9 Project EVEREST DD66000 Connections Caution : Turn all amplifiers off before connecting or d isconnecting Project EVEREST DD66000 loudspeakers. Making connections while an amplifier is operating could seriously damage the loudspeaker system and void the warranty . All amplifiers must also be turned off before connecting or disconnecting c[...]

  • Page 27

    Project EVEREST DD66000 bi - wire and bi - amp connections. Read the following explanations and connect in the suitable method. I. Passive Connecting Method The passive method requires one amplifier and one set of wires. Connections are made to either the upper terminals or the lower terminals . Do not remove the shorting straps. II. Bi - Wire Conn[...]

  • Page 28

    banana - type connector is recommended. As mentioned earlier, the Project EVEREST DD66000 loudspeakers may be connected to the amplifier(s) by one of three methods: passive, bi - wire and bi - amp. Each method, described above, has its own advantages, and the Project EVEREST DD66000 loudspeaker system will deliver superb performance with all method[...]

  • Page 29

    Project EVEREST DD66000 CHAPTER 10 Project EVEREST DD66000 Care and Maintenance The Project EVEREST DD66000 loudspeaker system requires no maintenance other than an occasional dusting with a soft, dry, lint - free cotton cloth. Th e horns may also be wiped with a soft cloth. Treat the lacquered surface very carefully to avoid scratching the finish.[...]

  • Page 30

    CHAPTER 1 1 Trouble shooting and Service Guide Project EVEREST DD66000 loudspeakers are designed to provide years of trouble - free service. No maintenance is required. If a problem occurs, make sure that all connections are properly made and clean. If a problem exists in one loudspeaker, reverse the speaker wires to the left and right system. If t[...]

  • Page 31

    Project EVEREST DD66000 CHAPTER 1 2 The Project EVEREST DD66000 Register In purchasing a Project EVEREST DD6600 0 loudspeaker system, you have joined a privileged group of music lovers who have sought, and finally found, a system that will reproduce sound to a level of perfection of which no other system in the world is capable. JBL has established[...]

  • Page 32

    CHAPTER 1 3 The Project EVEREST DD66000 System Specifications Low Frequency Driver : 380mm (15”) Pulp - Cone Woofer (150 0AL ) x 2 High Frequency Driver : 100 mm ( 4 ”) Beryllium Compression Driver (435Be) Ultra - High Frequency Drive r : 25mm (1”) Beryllium Compression Driver ( 045Be ) Power Handling (RMS) : 500W Frequency Response ( - 6dB) [...]

  • Page 33

    Project EVEREST DD66000 JBL and Harman Int ernational JBL is part of the Harman International audio companies, a group with a common purpose: combining technology with a love of music to manufacture audio products that provide new levels of satisfaction, performance and value. To promote diversit y and creativity, JBL operates independently in rese[...]