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CHAPTER 2
Legacy-the historical development of
the JBL P r o j e c tl o u d s p e a ke r s
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 occurrence indeed
when an individual or group is able to
triumph over the constraints of econom-
ic and technological reality just once.
At JBL, this has happened six times. In
each case, its engineers were told to
build the speaker system they had
always wanted to build. W h a t e v e r
resources were required would be made
available. Thus began an ongoing inves-
tigation into new frontiers of sound
reproduction, beginning mid-century in
1950 and continuing to the present day.
The products that have resulted from
this venture are now known as the JBL
P ro j e c tloudspeakers. Each represents
the absolute peak of every technologi-
cal, material and engineering innovation
available at that time, combined into a
single system. They are H a r t s fi e l d ,
Pa ragon, Everest, K2 S9500/7500 and
K2 S5500.The newest is K2 S9800.
Although differing in performance
details and physical attributes, each of
the P ro j e c tloudspeakers has shared a
common objective: to elevate sound
reproduction to levels defined only by
the limitations of existing materials and
t e c h n o l o g y. And despite a spread of
nearly fifty years, all P ro j e c tl o u d s p e a k-
ers have shared many common features-testimony to their foundation on the
technology and manufacturing tech-
niques upon which JBLwas built.
D e fining the P r o j e c tC o n c e p t
The H a r t s fi e l dbegan a tradition at JBL
that continues today. First, engineer a
product as close to perfection as pos-
sible. When it reaches that level, that is
the time to make it better.
In 1954, the H a r t s fi e l dwas significant
not in that it represented n ewt e c h n o l -
o g y, but rather a new level of the all-
technical manufacturing approach pio-
neered by James B. Lansing some
twenty years before it. Like its P ro j e c t
series successors, it was a high eff i c i e n-
cy system incorporating compression
driver technology, one combining the
qualities of high output, low distortion,
exceptional stereo imaging and fatigue-
free listening. Most important, it was
the first consumer-available listening
system to do so.
In this respect, P roject K2 S9800is at
once the most advanced and sophisticat-
ed loudspeaker in the world today a n da
speaker whose technology is deeply
rooted in over 50 years of tradition.
JBL's president in 1954, Wi l l i a m
Thomas, described the Hartsfield as
"...the speaker system we have always
wanted to build ... the finest compo-
nents ever made available to serious lis-
t e n e r s . "
2Project K2S9800
Page 2
He went on to describe the process
behind his creation: Most people who
own and appreciate fine sound repro-
duction equipment look forward 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 mat-
ter of incorporating these methods into a
system design, and then taking every bit
of trouble necessary to build a system
precisely to the design.
"It isn't easy, but that's the way it is
d o n e . "
The R a n ge r- Pa rag o n ,JBL's second
P ro j e c tsystem, was the first serious
attempt at a reflecting speaker system,
and broke ground in the new concept of
stereo imaging. Essentially two inde-
pendent full-range speaker systems
installed in a handsome curved cabinet
nearly 9 feet long, the Pa rag o n ' se n c l o-
sure was treated as an extension of its
transducers. In essence, the system had
its own "built-in acoustics." In many
respects the Pa rag o nanticipated loud-
speaker developments that would occur
years-and even decades-later.
For nearly 30 years, the Pa rag o nr e -
mained the most acoustically viable
sound system for the home. To d a y,
along with the H a r t s fi e l d, it is still the
most sought-after speaker in the world.
In 1986, JBLintroduced a new P ro j e c t
system that retained the Pa rag o n ' so v e r-all sense of musicality while upgrading
its character by incorporating three
decades' worth of continuous develop-
ment in every facet of its design. Its
name reflected the pinnacle of achieve-
ment it represented: P roject Evere s t .
For the first time, the rest of the sound
reproduction chain-and not the loud-
speaker or its transducers-would impose
limits on overall system performance.
Like the Pa rag o nand H a r t s fi e l d ,
P roject Evere s twas built around com-
pression driver technology and
addressed a more refined stereo image
than was previously considered techni-
cally feasible.
Since P roject Evere s twas introduced,
sound recording and playback technolo-
gy has undergone a revolution of its
own. With the advent of CD, extremely
demanding recorded signals had
become the rule rather than the excep-
tion-the average source material used by
the typical audioenthusiast had become
superior to the best demonstration mate-
rial of even just a few years ago. In
overall dynamics and transient response,
transducers are once again a potential
weak link in the high-end audio repro-
duction chain.
It was in this environment that JBLs e t
out to create its fourth and fifth P ro j e c t
loudspeakers, K2 S9500and K2 S5500.
As with H a r t s fi e l d, the puritan simplici-
ty of a two-way system was considered
the most promising design track.
Advances in transducer design and low
frequency alignment would make the
construction of a two-way system of
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