In order for a tweeter to optimally follow the fine and fast signals in its operating range, it is essential that its drive system is as light as possible. At the same time the tweeter should also be highly resilient so that it can withstand excessive levels unscathed. In "Ferrofluid cooled“ tweeters, their delicate voice coil is surrounded by a magnetically conductive special fluid known as ´ferrofluid´. The fluid establishes a thermal connection with the magnet system, allowing effective dissipation of the heat generated during operation. This results in increased resilience and constantly high sound quality of the tweeter. To ensure that it can continue to follow the music signal precisely, Magnat selects only low viscosity ferrofluids with optimum properties.