ESB 9000 Series 9.1T-25 1″/25mm Dome Tweeter

ESB Audio 9000 Series Speakers

The ESB 9000 Series (Novemila) speakers proudly claim the high-end segment and are among the most technologically advanced car speakers ever made. And also the most elegant! Technology and design come together in a new and unusual aesthetic thanks to the exceptional flower shape around the tweeter membrane and also on the woofer and midrange speaker baskets. However, this luxurious design was not created solely from an aesthetic point of view. It is an expression of innovation that allows the acoustic refraction at the edges of the tweeters to be less pronounced and adapts to the speaker design. An analogy can be found in the new Rolls-Royce engines for the most modern aircraft, which have the same shape at the trailing edge. Exactly where the air exits and the main turbulence is created. With the new design, these engines have achieved great advantages such as a 10 dB reduction in cabin noise and a 10% reduction in fuel consumption. However, this is not just a coincidental similarity. The design of both the ESB high-end speakers and the Rolls-Royce engines is based on the same premise: to reduce unwanted sound characteristics at the edges of the speakers and engines, respectively, and to effectively direct the airflow outward. However, this is just one of the many exclusive technologies that you will find in the 9000 model series. It includes a total of six top-of-the-line individual components, two 2-way component systems and three 3-way systems, which will amaze not only with their sound, but also with their unconventional luxury design and exceptional materials.

PRODUCT DESCRIPTION:

ESB Audio 9.1T-25 is one of two tweeter options in the 9000 series. The individual models differ in the diameter of the dome and several other parameters and technologies, but on the other hand they have many technological and design solutions in common. You will probably first notice the beautiful design of the tweeter. However, it is not just an expression of Italian aesthetics, but has its justification. This design allows for perfect dimensional stability and ensures perfect connection of all parts with very low tolerances, which reduces distortion and improves performance. The membrane is made of lightweight semi-transparent silk, which is a perfect combination of lightness and strength and is probably the most suitable material for extremely realistic music reproduction today. The dome is impregnated with resin with integrated suspension and is made of one piece, which also includes the suspension. This significantly reduces weight and allows the tweeter to reach very high frequencies. The absence of joints prevents breakdown and various vibration phenomena. The high-quality neodymium tweeter magnet ensures enormous magnetic force even after hours of use, when the tweeter will be hot. The voice coil is very light and can easily operate above 20 kHz, guaranteeing a fast transient response and a very natural sound. Also worth mentioning is the series of calibrated axial holes that connect the inner part of the tweeter to the rear chamber obtained by connecting the connector cover. This helps to lower the resonant frequency, improves ventilation and reduces the impedance peak, so the response is longer and more linear.

PRODUCT FEATURES:

• 28 mm diameter dome made of resin-impregnated silk.
• Lightweight removable steel grille with floral design and ESB logo.
• Felt under-skull damper made of pure long-fiber wool, which is the most effective material for absorbing and damping medium and high frequencies.
• The super-lightweight 25mm diameter aluminum voice coil with aluminum copper winding contributes significantly to the wide frequency range of this tweeter.
• The tweeter body is made of durable ABS plastic with excellent self-damping.
• Magnetic board made of extremely low carbon steel.
• The F52H neodymium main magnet represents the most suitable solution for both magnetic force in relation to weight and for supporting high temperatures (120°C compared to 80°C for a “classic” neodymium magnet).
• The pole plate is manufactured using a numerically controlled machine, not by stamping, which significantly reduces design tolerances in favor of performance.
• The plate has twelve axial holes in the bottom, designed to eliminate air back pressure caused by the movement of the dome. This allows for limiting the distortion that would inevitably occur due to the deformation of the fine silk and also helps to reduce the frequency resonance of the tweeter.
• Gold-plated copper terminals and extremely flexible connection cables with a high silver content to reduce electrical connection losses.
• The back of the tweeter is equipped with a threaded hole, which significantly increases the possibilities of its mounting in non-traditional conditions inside cars.