JBL DD66000 manual 476Be High Frequency Compression Driver and Horn, 476Be section view

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Project EVEREST DD66000

even-order distortion components. All suspension elements are tailored for maximum mechanical displacement linearity.

The cone is comprised of a special layered paper pulp matrix with proprietary Aquaplas ™ damping which offers more pistonic behavior throughout the woofer’s operating bandwidth, and controlled cone breakup beyond it.

A thick wall, cast aluminum frame is used to rigidly support the motor structure. This fully vented frame and motor design also serves to minimize the backpressure under the dome and spider, which helps to reduce harmonic distortion to even lower levels. JBL’s Vented Gap Cooling (VGC) is incorporated within the motor structure, and lowers the operating temperature

of the coil during moments of high power operation.

Altogether these design factors provide reduced harmonic distortions at very low and high acoustic output, improved power handling, reduced power compression, and more consistent spectral balance with varying input drive level.

476Be High Frequency Compression Driver and Horn

See Figure 3

The 476Be High Frequency Compression driver makes use of a 100 mm diameter, pure Beryllium diaphragm with 99 mm aluminum Edge-wound coil, operating into JBL’s existing Rapid Flare type, Coherent Wave phasing plug. The use of an efficient Neodymium rare -earth motor structure with new Copper Sleeved pole piece maintains maximum gap flux and reduced coil inductance at a minimum size and weight. The combination of these features has created a driver that can deliver superior sound quality regardless of acoustic power output with very little distortion and power compression.

Figure 3 – 476Be section view

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Contents Project Everest DD66000 Users Guide Table of Contents Chapter Defining the Project Concept Project Everest DD66000 Page Project Everest DD66000 Chapter Project Everest DD66000 1501AL section view 1501AL Low Frequency Driver476Be section view 476Be High Frequency Compression Driver and HornPage 045Be-1 section view 045Be-1 Ultra-High Frequency Compression Driver and HornDD66000 system impedance Internal Crossover NetworkUnpacking the Project Everest DD66000 System Grille Removal Selecting Cable Amplifier Recommendations Placement and Set-up Considerations Floor Requirements System Orientation Project Everest DD66000 Switch OperationsHF Drive / LF Drive LF Level HF LevelBattery Installation Project Everest DD66000 Project Everest DD66000 Connections III. Bi-Amp Connecting Method Passive Connecting MethodII. Bi-Wire Connecting Method Final Checklist Project Everest DD66000 Care and Maintenance Troubleshooting and Service Guide Project Everest DD66000 Register Project Everest DD66000 System Specifications USA JBL and Harman International

DD66000 specifications

The JBL DD66000 is a flagship model in the world of high-fidelity loudspeakers, designed to deliver an exceptional listening experience for audiophiles and music enthusiasts alike. With its rich heritage rooted in decades of acoustic engineering expertise, the DD66000 represents the pinnacle of JBL's commitment to superior audio performance.

One of the standout features of the DD66000 is its innovative three-way speaker configuration. This includes a 15-inch bass driver, a 4-inch midrange driver, and a high-frequency compression driver that produces crystal-clear treble. This arrangement allows for a wide frequency response, ensuring that every note, from the lowest lows to the highest highs, is reproduced with remarkable accuracy and detail.

The DD66000 boasts advanced technologies that enhance its performance. The Integrated Waveguide Technology ensures that sound is evenly distributed throughout the listening space, creating a spacious and immersive soundstage. This technology minimizes distortion and ensures that the sound maintains its clarity, even at high volumes. Additionally, the dual high-frequency compression drivers provide extended dynamic range, allowing the speaker to handle both quiet and loud passages seamlessly.

Another key characteristic of the JBL DD66000 is its robust build quality. The speaker is encased in an elegantly crafted cabinet that not only minimizes resonance but also adds to its aesthetic appeal. The sleek design incorporates high-quality materials, giving it a premium look that complements any audio setup.

The DD66000 is also versatile in its connectivity options. Designed to work seamlessly with various audio components, it features compatibility with both analog and digital sources. Audiophiles can enjoy their favorite music in high-resolution formats, ensuring that every detail is captured and enjoyed.

In summary, the JBL DD66000 is a masterful integration of advanced technology and superior craftsmanship. With its three-way configuration, cutting-edge sound dispersion technology, and solid build quality, it stands out as a premier choice for serious listeners. Whether used in a dedicated home theater or a high-end audio setup, the DD66000 promises to deliver an unrivaled listening experience, making it a worthy investment for those who demand the best in audio fidelity.
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