Material and technology

The use of natural slate in the construction of speaker cabinets offers significant advantages. Its layered structure, consisting of multiple components with varying degrees of rigidity, excellent internal resonance damping, and high weight, make it ideal for use in demanding acoustic applications. In the first stage, the material is split to the specified thickness, then sanded with high precision over its entire surface and glued together in two or more layers with a special epoxy adhesive. This stone sandwich then achieves many times greater strength in all directions than a single-layer board.

The most commonly used wood-based materials transmit vibrations very intensely – they practically take energy away from the electroacoustic transducers installed in the speaker cabinet by causing the cabinet panels to vibrate unnecessarily. In contrast, slate enclosures are very difficult to vibrate, and all the energy from the speakers is used without loss to vibrate the surrounding air. If a small amount of energy is transferred to the stone, it is very quickly dampened on its own. The results are not only measurable, but also clearly audible - the bass range gains noticeably higher dynamics and the overall volume is also partially amplified. Similarly, the benefits are also evident in the mid and high ranges. Minimal or almost zero vibration of the front wall eliminates the energy additions and subtractions that occur with compromise materials – and which make the reproduction result even further from reality. With slate enclosures, music reproduction becomes much more legible, with precisely transmitted transients and exceptionally deep spatial imaging.

Applications of top-quality components are crucial for limiting degradation of the passing signal. Among the components that form a common whole, there must not be a single weak link. First and foremost, these are custom-made transducers supplied by leading global manufacturers with decades of experience (SEAS, Scan-Speak, Ehmann Et Partner, Mundorf).

The quality of capacitors, chokes, and resistors in frequency crossovers is also a high priority. The materials used and the appropriate design are crucial in determining the final result. High-quality components with strict manufacturing tolerances are carefully selected from proven manufacturers (Mundorf, ETM, Intertechnik, Jensen/Duelund).

In addition to the natural slate surface, it is possible to apply a high-quality polished varnish of your choice (in any RAL shade) to the speakers, or to choose the original varnish of a specific car. Conscientious engineering and a high level of technological craftsmanship are among the essential conditions for achieving the highest sound quality. Technical precision, as well as continuous improvement of models between generations, ensures that every owner of Fischer&Fischer speakers owns a product of lasting value. In certain cases, it is even possible to update older versions to the latest technology after several years.