About Your Loudspeaker
An International Project
The Klipsch P 39-F has drawn on engineering, design and manufacturing resources from all aver the world. In addition to
our formidable team in the USA, we have used European Industrial Designers, British theoretical physicists, and
manufacturing and production specialists from China. The focal point of these resources is our birthplace Hope, Arkansas
where, under the vigilant eyes of the most skilled manufacturers of horn loudspeakers anywhere in the world, your P 39-F
was built, tested, measured, evaluated in rigorous listening tests, and finally shipped.
The P-39F is the culmination of over 60 years of research and engineering advancements., having been designed with
the most advanced computer aided design (CAD) tools available, rigorously evaluated using our own in-house
proprietary software, built to the most stringent quality standards and voiced by a panel of our most experienced
listeners. No Klipsch loudspeaker has ever had the care and attention to every detail lavished on it than your P-39F
Although building one pair of matched loudspeakers is relatively straightforward, building hundreds of matched
loudspeakers is challenging. Measurements play an important role in analyzing loudspeaker characteristics, but the
human ear is the ultimate test gear for evaluating its reproduction quality . At Klipsch, every loudspeaker design is strictly
evaluated using listening tests designed to expose even the very smallest weakness. All final voicing is performed under
blind conditions, using trained listeners and standard audio sound tracks selected based on their particular area of
auditory excellence. All information is tabulated and reported back to the designer for analysis. In almost all cases,
Klipsch products are evaluated against similarly priced competitive models. It is only in this manner that Klipsch can truly
rely on the quality of feedback received, eliminating skewed data that may result due to influences caused by price,
brand recognition, or visual appeal.
Design
The P-39F is a 3.5-way bass-reflex full range loudspeaker with high sensitivity and
extremely low distortion. The five drivers of the P-39F comprise three 9” woofers, an
advanced 4½” horn loaded compression midrange driver, and a ¾” titanium horn loaded
compression dome tweeter. Each driver was designed by the Klipsch Engineering team
and optimized for superior performance within each transducers bandwidth. Accurate
driver design minimizes the need for driver corrections in the crossover network. Thus,
the crossover is a straightforward design with extremely high quality components
ensuring minimal insertion loss. By presenting a simple load to the amplifier, overall
system performance is enhanced, a phenomenon rarely found with conventional
designs. Each component used in the crossover, from the air core inductors to the
polypropylene capacitors has been selected to provide an undistorted transition
between transducers. The superior components used in the P-39F are complemented by
the unique horn and enclosure design and highlighted by the elemental performance of
the industrial design. The massive laminated MDF enclosure is based on a curved non-
parallel wall structure for minimal resonance. Both the tweeter and midrange
compression drivers are integrated into a common molded two element horn optimized
for bandwidth, clarity, and efficiency.
Page 14
