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9

Of those who have sought perfection in sound reproduction, only a 
few have actually come close. For one thing, it is a costly process. 
It is rare indeed when an individual or group is able to triumph over 
the constraints of economic and technological realities even once.

At JBL, this has happened nine times. In each case, our engineers 
were told to build the speaker system they had always wanted 
to build. Whatever resources were required would be made 
available. Thus began an ongoing search for new frontiers in 
sound reproduction, beginning in the mid-1950s and continuing 
to the present day.

The products that have resulted from this venture are now known 
as the JBL Project loudspeakers. Each represents the absolute 
peak of every technological, material and engineering innovation 
available at the time, combined into a single loudspeaker 
system.  They  are  Hartsfield,  Paragon,  Everest  DD55000,  K2 
S9500/7500, K2 S5500, K2 S9800, K2 S5800, Project Everest 
DD66000 and K2 S9900.

Although differing in performance details and physical attributes, 
all of the Project loudspeakers have shared a common objective 
–  to  elevate  sound  reproduction  to  levels  defined  only  by  the 
limitations of existing materials and technology. The fact that all 
Project loudspeakers have many common features, despite 
their having been created over a span of nearly sixty years, is a 
testimony to the excellence of the technology and manufacturing 
techniques upon which JBL was built.

defininG the Project concePt

The Hartsfield began a tradition at JBL that continues today. First, 
engineer a product as close to perfection as possible. When it 
reaches that level, make it better.

In 1954, the Hartsfield was significant in that it represented not new 
technology, but rather a new level of technical manufacturing, in the 
spirit of the approach pioneered by James B. Lansing some twenty 
years before. Like its Project series successors, it was a high-
efficiency system incorporating compression driver technology and 
combining the qualities of high-output, low-distortion, exceptional 
stereo imaging and fatigue-free listening. Most important, it was 
the first loudspeaker system available to consumers to do all this.

JBL’s president in 1954, William Thomas, described the Hartsfield 
as the “speaker system we have always wanted to build [with] the 
finest components ever made available to serious listeners.”

 Legacy

the historicaL DeveLoPment of  

the jbL Project LouDsPeakers

1

JBL Hartsfield

Summary of Contents for Project Everest DD65000

Page 1: ...Project Everest DD65000 DD67000 Product Commentaries and User Guide...

Page 2: ...nk you for purchasing a JBL Project Everest loudspeaker system Before using the system please take the time to read through this user guide to understand this loudspeaker well and also to use it prope...

Page 3: ...ecting Speaker Wire 26 Chapter 5 Amplifier Recommendations 28 Chapter 6 Placement and Setup Considerations 30 Chapter 7 Project Everest Adjustments 32 Chapter 8 Project Everest Connections 38 Chapter...

Page 4: ...connecting the speakers to their associated electronics This information is found in Chapters 3 through 8 In addition we have included a detailed description of your Project Everest loudspeakers in Ch...

Page 5: ...roduction to levels defined only by the limitations of existing materials and technology The fact that all Project loudspeakers have many common features despite their having been created over a span...

Page 6: ...asically two independent full range speaker systems installed in a handsome curved cabinet nearly 9 feet 2 7 meters wide the Paragon s enclosure was treated as an extension of its transducers In essen...

Page 7: ...the Project K2 developments were all poured into this new challenge to extend the acoustic and electrical possibilities in this Project Everest model Despite its 21st century power and sophistication...

Page 8: ...6 compression driver and horn combination The 045 UHF driver is brought in at 20kHz to cover an octave and a half of ultrasonic frequencies A second 1501 woofer operates in the bass frequency range fr...

Page 9: ...and still present realistic response and detail to a degree unattained by other loudspeaker systems Die Cast Aluminum Housing 045 Series 1 25mm UHF Compression Driver SonoGlass High Frequency Horn 47...

Page 10: ...odymium has been used The phasing plug is of JBL s traditional rapid flare coherent wave four slot design This coherent wave design shapes the wave output producing a truly coincident wave front as th...

Page 11: ...0 degrees in the vertical plane over the frequency interval from 10kHz to 50kHz Internal Crossover Network The circuit topology combined with the acoustic behavior of the 1501 series and 476 series tr...

Page 12: ...cabinet To avoid damage to your floor we strongly advise unpacking the speakers on a well protected surface such as a thick carpet or cardboard Note Your loudspeaker system is packed with a protective...

Page 13: ...els when you set up your speakers You can remove the grilles with the following procedures 1 Hold the lower part of the grille with both hands and push it up Push bottom of grille UP 2 Pull the bottom...

Page 14: ...to best complement your particular system We recommend using an audiophile quality speaker wire of not less than 16 gauge for connections of up to 15 feet 5 meters as a minimum requirement For maximu...

Page 15: ...ur identical amplifiers or two dual channel units may be used although specialized low frequency and high frequency amplifiers offer clear advantages If four amplifier channels are used the high frequ...

Page 16: ...ult in dull sounding bass On the other hand too much distance between the loudspeakers and the nearest wall will reduce the bass output but result in fast and sharp sounding bass The loudspeakers low...

Page 17: ...he adjustments To change setups using shorting bars use the supplied hexagonal driver to remove the screws securing the bar Move the bar according to the setup you require and then re install the scre...

Page 18: ...g the bars The bars select which woofer receives the low frequency signals and which woofer receives the midrange signals One system should be set to left and positioned as the left speaker The other...

Page 19: ...ing bars two LF and one HF would be moved together to set the loudspeaker for bi amping It is possible to operate the system with just the low frequency system or the high frequency system set for bi...

Page 20: ...aps connect the netative terminals together and the positive terminals together Assign one of the two speaker wire conductors as the negative conductor and the other as the positive conductor These sh...

Page 21: ...l posts For this type of connection loosen the knobs on the terminals to expose the holes in the terminal shafts and insert the bare end of each speaker wire into the hole exposed on the terminal shaf...

Page 22: ...ion methods described above has its own advantages your Project Everest loudspeaker system will deliver superb performance with any of the methods described Final Checklist Connect all other system el...

Page 23: ...cy or ultrahigh frequency horn If the surfaces of the low frequency driver cones become dusty you can carefully sweep them clean with a soft dry calligraphy brush or paint brush Do not use a damp clot...

Page 24: ...x 18 1 2 965mm x 1109mm x 469mm Weight 302 lb 137kg without grille 312 lb 142kg with grille Package weight 383 lb 174kg DD67000 Low frequency transducer 15 380mm Pure pulp sandwich foam core cone woof...

Page 25: ...w Thank you for purchasing a JBL Project Everest loudspeaker system...

Page 26: ...al audio users everywhere will be able to enjoy their full range of benefits JBL continually engages in research related to product development and improvement Because of this new materials production...

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