JBLメーカーDD66000の使用説明書/サービス説明書
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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.
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 Pla.
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.
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.
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 ".
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 .
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.
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.
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.
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.
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 ma.
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.
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.
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.
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.
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 .
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.
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.
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.
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.
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 .
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.
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.
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.
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.
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 .
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 .
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.
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.
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.
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.
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 Drive.
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.
デバイスJBL DD66000の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
JBL DD66000をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはJBL DD66000の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。JBL DD66000の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。JBL DD66000で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
JBL DD66000を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はJBL DD66000の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、JBL DD66000に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちJBL DD66000デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
