9000
New High-End Speaker Series
Merging advanced aircraft engine and speaker technology
The new 9000 Series consists of some of the most technologically advanced car speakers ever produced. Technology and design come together in a new and unusual aesthetic, thanks to the particular flower shape of the flanges around the tweeter dome, and in the baskets of the cone speakers. But the unique shape was not to achieve an aesthetic form factor. It is an expression of ESB’s innovation.
Woofer - Main Features
• The pole cup, designed with magnetic flux analysis software, helps to achieve perfect and homogeneous saturation of the magnetic gap for the benefit of the voice coil stroke. Always immersed in constant magnetic flux, this reduces distortion and increases dynamics.
• Generously sized neodymium magnet: This very powerful magnet is made from a high-temperature resistant neodymium and allows the size and bulk of the magnetic motor to be greatly reduced. The equivalent magnetic force from a standard ferrite magnet would require larger dimensions of the speaker itself.
• Pole yoke with special internal ventilation ensures a long life of the voice coil.
• The terminals accept large gauge cables and are gold-plated to prevent any loss of power generated by the amp.
• The cast-aluminum and powder-coated basket offers very low resistance to the passage of air, and its shape (verified by FEM analysis) reduces vibration and resonance.
• A special spider device, screwed to the central pole, ensures the spider damper clamping.
• Conex™ spider damper is inside the voice coil with balanced and progressive stiffness for a perfect controlled ride
• An enormous voice coil ensures highest-in-class power handling and guarantees unequaled speaker dynamics. The design of this voice coil ensures that it remains fully immersed in the magnetic field for much of its excursion, minimizing distortion. The voice coil former is made of aluminum with ventilation holes and black anodization in order to better dissipate heat. Underhung voice coil: the length of the voice coil winding is shorter than the height of the magnetic gap. This design allows lower distortion at lower excursions and more precise control over the movement of the voice coil.
• The cone is made of high modulus carbon molded under vacuum and autoclave, a technology rarely used in speakers because of its cost, but brings enormous benefits in terms of naturalness of reproduction and high transient dynamics.
• The NBL rubber surround has a shape designed to ensure very smooth movement at very low excursion, becoming increasingly controlled as the excursion increases and approaches the limit. This, too, helps to make this speaker extremely dynamic and capable of handling high powers.
• The CNC-machined aluminum ring secures the rubber suspension on the edge, ensuring perfect fastening and centering.
• CNC-machined aluminum grille (optional).
Tweeters - Main Features
• TCA System (9.1T-28) for back air flow control which reduces turbulence, noise, and controls the damping of the dome.
• Pole cup CNC machined from a solid piece of ultra-low-carbon steel.
• Main magnet made from N52H neodymium, best both for the magnetic force in relation to the mass, and for high temperatures support (120° F vs. 80° F of a standard neodymium magnet).
• Magnet plate made of ultra-low-carbon steel.
• Secondary or superior magnet (9.1T-28) used to stabilize and regulate the magnetic flux and concentrate it only in front of the voice coil, increasing efficiency, manageable power, distortion and bandwidth.
• Pure copper ring helps reduce the inductance of the voice coil so that it offers minimal resistance during high frequency reproduction. This means better high-frequency response, enabling the speaker to reproduce high-frequency sounds more accurately. Reduced inductance contributes to better handling of rapid transitions of audio signals. This improves the speaker's ability to more accurately reproduce transient sound pulses.
• FCA System (9.1T-28): a special structure to control the flow of air moved by the dome. This creates a periodic damping resistance and dictates that the release of the energy accumulated in the movement of the dome occurs in a controlled and fast manner, without creating persistent oscillations. This contributes to a more precise and faithful response to the audio source and accuracy, and the overall quality of the audio experience.
• Super light aluminum voice coil uses a high-strength aluminum alloy to reduce its thickness and its weight. The winding is also aluminum with a pure copper “skin”. This results in a perfect combination of resistance and weight of the wire.
• Pure Japanese silk dome resin impregnated with integrated suspension. This catenary profile dome is made in a single piece that also includes the suspension. This greatly reduces the weight, allowing the tweeter to reproduce very high frequencies. The absence of joints prevents break-up and/or vibrations.
• Felt ring to eliminate any deleterious vibration.
• Light stainless steel grill for dome protection.
• The faceplate isn’t just cosmetic, but acts as an acoustic lens. Its shape dramatically reduces side refractions an unwanted occurrence in car installations where windows create harmful refractions.
• 8 installation accessories (9.1T-25) for different car models.
Midranges - Main Features
• The magnet pole yoke, designed with magnetic flux analysis software, helps to achieve perfect and homogeneous saturation of the magnetic gap for the benefit of the voice coil stroke. This reduces distortion and increases dynamics.
• A pure copper ring (9.4M) placed in the air gap helps reduce the inductance of the voice coil so that it offers minimal resistance during high frequency reproduction. This means better high-frequency response, enabling the speaker to reproduce high-frequency sounds more accurately. Reducing inductance contributes to better handling of rapid transitions of audio signals. This can improve the speaker's ability to more accurately reproduce transient sound pulses.
• TCA to control the flow of air moved by the cone creates aperiodic damping resistance and dictates that the release of energy accumulated in the movement of the speaker occurs in a controlled and fast manner, without creating persistent oscillations. This contributes to a more precise and faithful response to the audio source and to the accuracy and overall sound quality.
• Main twin coupled neodymium magnets (9.4M). This pair of neodymium high-temperature resistant magnets are one of the most powerful motor magnet structures for this size of car audio midrange. They are made from a high-grade neodymium and allow the size and bulk of the magnetic motors to be greatly reduced.
• Pole plate CNC machined from a solid piece of ultra-low-carbon steel.
• The built-in, substantial terminals accept large gauge cables and are gold-plated to prevent any loss of power generated by the amp.
• Die cast-aluminum and powder-coated basket offers very low resistance to the passage of air, and its shape (verified by FEM analysis) reduces vibration and resonance.
• Wide, lightweight Nomex voice coil with aluminum winding contributes significantly to the wide bandwidth extension.
• Large balanced Conex™ spider damper device ensures linear excursion in both directions, reducing distortion.
• The cone is made of high modulus carbon molded under vacuum and autoclave, a technology rarely used in speakers because of its cost, but brings enormous benefits in terms of naturalness of reproduction and high transient dynamics.
• The NBL rubber surround has a shape designed to ensure very smooth movement at very low excursion, becoming increasingly controlled as the excursion increases and approaches the limit. This, too, helps to make this speaker extremely dynamic and capable of handling high power.
• The laminated aluminum dust cap (9.4M) helps extend this midrange's frequency response upward, and its shape and size helps equalize and linearize the frequency response.
• The CNC-machined aluminum ring (9.4M) secures the rubber suspension on the edge, ensuring perfect fastening and centering.
• CNC-machined aluminum grille (optional).
As we said, the particular shape of the flanges and baskets was not to achieve an aesthetic form factor. They are an expression of ESB’s innovation. The result is that the acoustic refraction on the edges of the speakers will be less damaged if the outer edge is not equidistant from the center. An analogy can be found in the new Rolls Royce aircraft engines that have the same shape on the back edge (where the greatest turbulences is). This is not just a random analogy; both are constructive choices… effectively channeling the air flow outside. That's just one inspiration for a speaker series full of technical innovation.
9.1T-28
CNC Metal Housing
The 9.1T-28 tweeter can be installed with the optional gun metal anodized flange for spaces up to 95 mm.
The flange is provided with a silver finishing ring fixed by magnets. The flange is equipped with a rear chamber which allows the tweeter an even better response in the lower frequency spectrum.
9.1T-25
Installation Accessories
The 9.1T-25 tweeter comes with 8 different mounting accessories for different car models. The back of the tweeter is provided with a threaded hole to be used with each flange and that greatly increases the possibilities of fixing it in unconventional locations.
The UMA Unit
A Legend, Renewed
• The damping material controls the tweeter air flow and creates aperiodic resistance.
• Large neodymium magnet. This high-temperature resistant neodymium magnet is one of the most powerful, and the special design ensures that the lines of force are focused right where they’re needed without any leakage.
• Felt damper for controlling and reducing the tweeter dome’s resonance.
• Wide 25 mm lightweight aluminum voice coil with aluminum copper clad winding contributes significantly to the large bandwidth extension of this tweeter.
• Silk dome impregnated with resin with integrated suspension. Made in a single piece, this greatly reduces weight, allowing the tweeter to reproduce very high frequencies. The absence of joints also prevents break-up and/or vibration phenomena.
• CNC-machined billet aluminum flange allows the midrange and tweeter to be mounted using screws so the two speakers can be replaced if need be.
• Integrated terminal connector located between the midrange and tweeter, made of pure gold-plated copper, accepts large gauge cables, and which are secured using allen screws.
• TCA, to control the flow of air moved by the midrange cone, creating aperiodic damping resistance that ensures the release of energy accumulated in the movement of the speaker occurs in a controlled and fast manner, without creating persistent oscillations.
• Die cast-aluminum and powder-coated basket (midrange) offers very low resistance to the passage of air, and its shape (verified by FEM analysis) reduces vibration and resonance.
• Wide, lightweight Nomex voice coil with aluminum winding contributes significantly to the wide bandwidth extension of the midrange.
• Large balanced Conex™ spider damper device ensures linear excursion in both directions thereby reducing distortion.
• Collar for joint voice coil and cone. This distributes the pressure on the cone over a large area for reduced deformation and distortion.
• The cone is made with vacuum and autoclave molded high-modulus carbon, a technology rarely used in loudspeakers because of its cost, but it brings enormous benefits in terms of naturalness of reproduction and high dynamics at transients. This is made in a single piece without a dust cap, offering incredible advantages in dispersion and regularity of frequency response at the high end.
• The NBL rubber surround has a shape designed to ensure very smooth movement at very low excursion, becoming increasingly controlled as the excursion increases and approaches the limit. This, too, helps to make this speaker extremely dynamic and capable of handling high powers.
• CNC-machined aluminum grille.
9.UMA
The Phase Concept
This special component is a concept conceived in 1970’s. Its aim is to concentrate midrange and tweeter emissions in a a virtual single point. This Minimizes phase delays and irregularities at the crossover point.
Combined, the two components are able to reproduce with perfect linearity all the spectrum from 130 Hz to 25 KHz.
Learn more here:
9000 Series - Components
