Neodymium

Magnet

Phase Plug

Aluminum

Edge-Wound

Voice Coil

Figure 4. Cutaway view of 435Al high-frequency transducer.

Aluminum-

Alloy Cover

75mm Pure- Aluminum Diaphragm

Binding-

Post Input

Terminal

frequency drivers, it utilizes forced-air cooling. The entire magnetic structure is attached to a die-cast aluminum-alloy frame. This provides accurate, rigid support for the motor and cone mounting points, as well as doubling as a massive heatsink by providing a huge surface area for heat dissipation.

The 1200FE has a central cooling duct which effectively cools the voice coil and reduces the likeli- hood of hot spots. By reducing the operating temperature of the voice coil, power compression is signifi- cantly reduced, which enables the low-frequency driver to operate in a more linear fashion over a wider sound pressure level (SPL) range.

The voice coil itself is constructed from edge-wound aluminum wire on a massive 3-inch-diameter fiberglass former. This configura- tion provides for further cooling ability in conjunction with the motor design.

The Aquaplas-coated, Kevlar- composite cone, along with the EPDM rubber surround, provides excellent damping and transient response characteristics.

435AL ALUMINUM DIAPHRAGM/ NEODYMIUM MAGNET HIGH-FREQUENCY COMPRESSION DRIVER

See Figure 4.

The 435Al neodymium high- frequency compression driver is based on the professional JBL 2430 device. It incorporates a rare-earth neodymium magnet structure, designed by extensive computer modeling, including finite element analysis, which combines the attributes of efficiency, strength, low mass and compact size. This motor structure is coupled with

a 3-inch aluminum diaphragm. Aluminum provides improved low- distortion characteristics and flat frequency response.

High-temperature materials and adhesives allow the driver to han- dle extremely high power levels over extended periods of time. The SonoGlass horn is acoustically inert and precision-molded to exacting tolerances.

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JBL K2 S5800 manual Neodymium Magnet Phase Plug Aluminum Edge-Wound Voice Coil

K2 S5800 specifications

The JBL K2 S5800 is an exceptional loudspeaker that caters to audiophiles and professional audio engineers looking for high fidelity sound in various listening environments. Known for its iconic design and remarkable performance, the K2 S5800 combines advanced technology with a rich heritage in audio engineering, making it a standout choice in the realm of high-end speakers.

One of the main features of the K2 S5800 is its innovative 3-way speaker configuration, which incorporates a 15-inch woofer, a 4-inch midrange driver, and a 1-inch titanium dome tweeter. This combination allows for a wide frequency response, delivering deep and powerful bass, clear midrange, and crisp high frequencies. The result is a well-balanced sound that can reproduce music accurately without coloration, providing listeners with an authentic audio experience.

The K2 S5800 utilizes JBL's patented Bi-Radial horn technology, which enhances the dispersion of high frequencies across a broad area. This technology ensures that listeners can enjoy consistent sound quality, whether they're positioned in the sweet spot or off to the side. Additionally, the advanced waveguide design of the horn optimizes the interaction between the drivers, further improving coherence in sound reproduction.

Another noteworthy characteristic of the K2 S5800 is its ability to handle high power levels, making it suitable for both home audio systems and professional studio environments. With a power handling capacity of up to 800 watts, the K2 S5800 can deliver powerful sound that fills large spaces without distortion. This capability is crucial for audio professionals who require reliable performance during recording, mixing, or live sound applications.

The speaker's cabinet is meticulously crafted from high-quality materials, providing both aesthetic appeal and acoustic integrity. The enclosure is designed to minimize resonance and unwanted vibrations, ensuring that the sound remains clean and true to the source. Furthermore, the K2 S5800's elegant finish and sleek design add a touch of sophistication to any space, making it not just a high-performance speaker, but also a stylish piece of furniture.

In summary, the JBL K2 S5800 is a remarkable loudspeaker that merges cutting-edge technology with a commitment to audio excellence. With its powerful drivers, advanced dispersion technology, and premium build quality, it is an ideal choice for anyone seeking unparalleled sound performance in a beautifully designed package. Whether for professional use or high-end home listening, the K2 S5800 exemplifies JBL's legacy of innovation and quality in the audio industry.