Features
Low-frequency driver: 380mm (15") pulp-cone woofer (1501AL) x 2
High-frequency driver: 100mm (4") beryllium compression driver (476Be)
Ultrahigh-frequency driver: 25mm (1") beryllium compression driver (045Be-1)
Horn directivity (horizontal x vertical): High-frequency – 100° x 60°; Ultrahigh-frequency – 60° x 30°
Crossover frequency: 150Hz (LF1 6dB/octave), 700Hz (LF2 24dB/octave), 20kHz (UHF 24dB/octave)
Control function: HF level control (–0.5dB/0dB/+0.5dB), LF level control (low/high),
LF/HF drive mode switch (normal/bi-amp), system orientation switch (left/right)
Package weight: 174kg (383 lb)
The DD66000 excels in every sonic respect, with authoritative bass, a pure, detailed midrange and open, extended high-fre-
quency response beyond 50kHz. The DD66000 combines the superlative dynamic range, transient response, and “effortless”
quality of horn-loaded compression drivers with the precise imaging, three-dimensional soundstage and articulate low-
frequency impact provided by the finest dynamic drivers. The DD66000 delivers remarkably natural vocal and instrumental
reproduction, and faithfully reproduces the sonic environment present on the original recording.
Project Everest DD66000 incorporates a host of innovative loudspeaker technologies. Its 045Be-1 ultrahigh-frequency driver
uses a 25mm (1") beryllium diaphragm and 50mm (2") neodymium magnet to produce frequency response beyond 50kHz.
The 476Be high-frequency compression driver utilizes a 100mm (4"), pure-beryllium diaphragm with a 100mm (4") aluminum
edge-wound voice coil, and JBL’s rapid-flare, coherent-wave phasing plug. A high-efficiency neodymium-magnet motor
structure features refinements such as a pure-copper-sleeved polepiece that maintains maximum magnetic-gap flux and
delivers superior sound quality at any volume, with exceptional clarity and resolution.
These leading-edge transducers operate in conjunction with Bi-Radial
®
horns that are made from dense and inert SonoGlass
material, eliminating unwanted sonic colorations. The horns are shaped to provide optimum dispersion in the horizontal and
vertical planes, for smooth frequency response and precise imaging.
The 1501AL 380mm (15") woofer utilizes an Aquaplas-treated-pulp cone that preserves sonic neutrality while damping
internal resonances and providing controlled and articulate bass response. The crossover network is designed to allow
the woofers to operate in different frequency ranges, a configuration that provides optimum directivity and high output.
The crossover network employs a DC-battery bias system that keeps the capacitors operating in Class A mode, yielding
maximum sonic purity.
The DD66000 features front-mounted control panels that enable precise tuning of low-frequency and high-frequency level
and other characteristics, to achieve maximum sonic performance in any system and room. The DD66000 is built to the
highest standards, utilizing premium internal components such as polypropylene foil capacitors, and wire-wound and metal-
oxide resistors and air-core inductors. Extensive internal bracing provides additional rigidity to eliminate unwanted internal
resonances.
The measured performance of the DD66000 is exemplary. The frequency response of the system is extremely smooth
and extended. Directivity and power response are highly uniform, harmonic distortion is reduced to inaudible levels,
and dynamic linearity is unparalleled.
Project Everest – DD66000
Exquisite, high-performance two-way speaker system
Harman Consumer Group, Inc.
2, route de Tours, 72500 Château du Loir, France • 250 Crossways Park Drive, Woodbury, NY 11797, USA • 8500 Balboa Boulevard, Northridge, CA 91329, USA
www.jbl.com
© 2007 Harman International Industries, Incorporated. All rights reserved. JBL, Bi-Radial and SonoGlass are trademarks of Harman International Industries,
Incorporated, registered in the United States and/or other countries.
Features, specifications and appearance are subject to change without notice.
