Focal Micro Utopia

Beryllium - The ideal material for a dome. An ideal dome must combine lightness, rigidity and damping. Currently, only one material offers the possibility of a significant improvement. Beryllium's densityis 2.5 times lower than Titanium and 1.5 times lower than Aluminium while its rigidityis 3 times higher than Titanium and 5 times superior to Aluminium. Which means that for a dome of identical mass, a Beryllium version is 7 times more rigid than one made of Titanium or Aluminum - which have similar rigidity for a given mass. Moreover, the velocity of sound in a Beryllium dome is 3 times fasterthan a Titanium version and 2.5 times faster than Aluminum. However, the manufacturing of Beryllium remains very difficult and its production has been limited to just three countries: the United States, France and Russia. To date, Great Britain, Germany and Japan do not manufacture pure Beryllium, rather using it in the form of an alloy. Beryllium is an excellent high-tech metal - the only metal able to scratch glass - it is only used in strategic applications in the aeronautical and military industries and consequently, its unique characteristics make it extraordinarily expensive, much more than gold and nearly 100 times that of Titanium.

Height 425 mm Width 250 mm Depth 380 mm Weight 17.5 kg Finish Classic Efficiency 89 db Impedance 8 ohm Bandwidth 50 hz a 40 khz Bass 165 mm "w" power flower Tweeter TBU 25mm beryllium pur focus ring