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CHAPTER 1 – LEGACY: THE HISTORICAL DEVELOPMENT OF
THE JBL 

PROJECT

LOUDSPEAKERS

Of those few who seek perfection in
sound reproduction, only a handful
have actually achieved it. The price
is always high. It is a rare occur-
rence indeed when an individual or
group is able to triumph over the
constraints of economic and tech-
nological reality even once.

At JBL, this has happened eight
times. In each case, its engineers
were told to build the speaker sys-
tem they had always wanted to
build. Whatever resources were
required would be made available.
Thus began an ongoing investiga-
tion into new frontiers of sound
reproduction, beginning in 1950, 
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 that time, combined into a 
single system. They are 

Hartsfield, 

Paragon, Everest, K2 S9500/7500 

and

K2 S5500.

The newest models are

the 

K2 S5800 

and

K2 S9800.

Although differing in performance
details and physical attributes, each
of the 

Project

loudspeakers has

shared a common objective: to ele-
vate sound reproduction to levels
defined only by the limitations of
existing materials and technology.
And despite a spread of nearly 50
years, all 

Project

loudspeakers

have shared many common 
features – testimony to their 
foundation on 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, engi-
neer a product as close to perfection
as possible. When it reaches that
level, it is time to make it better.

In 1954, the 

Hartsfield

was signifi-

cant in that it represented not 

new

technology, but rather a new level
of the all-technical manufacturing
approach pioneered by James B.
Lansing some 20 years before it.
Like its 

Project 

series successors, 

it was a high-efficiency system
incorporating compression driver
technology, one combining the
qualities of high output, low distor-
tion, exceptional stereo imaging
and fatigue-free listening. Most
important, it was the first consumer-
available listening system to do so.

In this respect, 

Project K2 S5800

is at once the most advanced and
sophisticated loudspeaker in the
world today (save for the 

Project 

K2 S9800

) and a speaker whose

technology is deeply rooted in more
than 50 years of tradition. JBL’s
president in 1954, William Thomas,
described the 

Hartsfield

as “...the

speaker system we have always
wanted to build...the finest compo-
nents ever made available to seri-
ous listeners.”

He went on to describe the process
behind his creation: “Most people
who own and appreciate fine sound
reproduction equipment look for-
ward to the day when they will be
able to assemble a system without
limitation in just exactly the way
they think it should be done. 

“Periodically, a manufacturer gets
this same feeling....The science of
acoustics has provided us with
basic principles – available to all for
achieving precision reproduction. 
It is only a matter of incorporating
these methods into a system design,
and then taking every bit of trouble
necessary to build a system pre-
cisely to the design. It isn't easy, but
that’s the way it is done.”

The 

Ranger-Paragon,

JBL’s second

Project

system, was the first seri-

ous attempt at a reflecting speaker
system, and broke new ground in
the concept of stereo imaging.
Essentially two independent full-
range speaker systems installed in
a handsome curved cabinet nearly
9 feet long, the 

Paragon’s

enclosure

was treated as an extension of its
transducers. In essence, the system
had its own “built-in acoustics.” In
many respects the 

Paragon

antici-

pated loudspeaker developments
that would occur years – and even
decades – later.

For nearly 30 years, the 

Paragon

remained the most acoustically
viable sound system for the home.
Today, along with the 

Hartsfield

it is still the most sought-after
speaker in the world.

In 1986, JBL introduced a new

Project

system that retained the

Paragon’s

overall sense of musicality

while upgrading its character by
incorporating three decades’ worth
of continuous development in every
facet of its design. Its name reflected
the pinnacle of achievement it rep-
resented: 

Project Everest.

For the first time, the rest of the
sound reproduction chain – and not
the loudspeaker or its transducers –
would impose limits on overall sys-
tem performance. Like the 

Paragon

and 

Hartsfield, Project Everest

was built around compression 
driver technology and addressed 
a more refined stereo image than
was previously considered 
technically feasible.

4

Summary of Contents for PROJECT K2 S5800

Page 1: ...OWNER S GUIDE PROJECT K2 S5800 3 WAY FLOORSTANDING SPEAKER SYSTEM...

Page 2: ...ER 3 UNPACKING THE PROJECT K2 S5800 SYSTEM 10 CHAPTER 4 SELECTING CABLE 11 CHAPTER 5 AMPLIFIER RECOMMENDATIONS 12 CHAPTER 6 PLACEMENT AND SETUP CONSIDERATIONS 13 CHAPTER 7 PROJECT K2 S5800 SWITCH OPER...

Page 3: ...it to its associated electronics This information will be found in Chapters 3 through 7 In addition we have included a detailed description of Project K2 S5800 loudspeakers Chapter 2 so that you may b...

Page 4: ...respect Project K2 S5800 is at once the most advanced and sophisticated loudspeaker in the world today save for the Project K2 S9800 and a speaker whose technology is deeply rooted in more than 50 yea...

Page 5: ...ionary changes with the introduc tion of DVD Video Dolby Digital DTS DVD Audio and Super Audio CD SACD Frequency responses to 50kHz and 3 digit dynamic range and signal to noise ratios have now become...

Page 6: ...ng employed in Project K2 S5800 has resulted in a significant advance in the concept of state of the art bass reproduction This proprietary align ment method offers the best damp ing characteristics a...

Page 7: ...effects of their exact location and proximity Full image coherency is main tained resulting in an acoustically stable pinpointed stereo image All the sound seems to come from the combination horn in t...

Page 8: ...omposite cone along with the EPDM rubber surround provides excellent damping and transient response characteristics 435AL ALUMINUM DIAPHRAGM NEODYMIUM MAGNET HIGH FREQUENCY COMPRESSION DRIVER See Figu...

Page 9: ...h effec tively charges the network at all times so that all components are constantly on and do not generate distortion while switching between the on and off stages This is accomplished by a battery...

Page 10: ...ny manufacturers produce audiophile cables worth consider ing for Project K2 S5800 As with all electronics and associated compo nents however every manufacturer offers products of varying quality to s...

Page 11: ...s should have a very high current capacity and must be capable of driving a low impedance load For bi wiring or bi amplification applications four identical ampli fiers or two dual channel units may b...

Page 12: ...r could look straight into the center of the speaker Figure 7 As the distance increases between the speakers increase the inward angle of the speaker The imaging qualities enable the speakers to be pl...

Page 13: ...gh the range of these con trols is rather small each of them operate over a reasonably wide frequency range and thus have a noticeable effect on the overall tonal balance of the system It is recommend...

Page 14: ...level position and the 1dB position decreases the output Each position will affect the tonal balance over a wide frequency spectrum Experiment by placing the switch in each position while listening t...

Page 15: ...of connection loosen the knobs on the terminals and insert the exposed bare ends of each speaker wire into the hole exposed on the terminal shaft to to see Figure 13 Refasten the knob on each termi n...

Page 16: ...nt in the crossover region If a prob lem is suspected reverse the polarity to either low or high frequency sections of both loudspeakers Amplifier polarity markings may not ensure correct polarity con...

Page 17: ...on system is used for the crossover network in which a direct DC bias current is constantly applied to the capaci tors in the network circuit to acti vate the elements eliminating crossover distortion...

Page 18: ...is configured so that the speaker in question is enabled Switch the speaker wires between the speaker with the problem and one that is working correctly If the problem remains in the same speaker the...

Page 19: ...stained operation at these maximum power levels All features and specifications are subject to change without notice JBL is part of the Harman International audio companies a group with a common purpo...

Page 20: ...PRO SOUND COMES HOME JBL Consumer Products www jbl com 2003 Harman International Industries Incorporated Part No 339519 001 A Harman International Company...

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