Sony XBA-4 headphones test

 

The abbreviation? BA "stands for Balanced Armature, literally translated would expect from a? Balanced armature" speak. Balanced because the anchor is in the center of the magnetic field of a permanent magnet, where no force is exerted on it. The anchor and the coupled membrane him move only when power is supplied. BA drivers are very small and need for sound production relatively little power, in other words: Despite its space-saving size, they have a high efficiency. Therefore, a housing can be equipped with a plurality of drivers for different frequency ranges. Because BA driver also must be sealed better, you can look forward to a more effective sound insulation - both inteally and exteally. When XBA-4, the largest model in the new XBA headphones are a full-range drivers, a tweeter, a woofer and a super woofer to the course, so in principle it is a tiny 4-way box. Together to cover the frequency range from three to 28,000 hertz, the driver units. The sensitivity is 108 dB, impedance and power handling at eight ohms at 100 milliwatts. The cable is made from oxygen-free copper (OFC Oxygen Free Copper), bringing it to a length of 120 centimeters and is coected through a gold-plated 3.5 mm plug, L-shaped with the player. Supplied with rubber cushions in different sizes, a cable rider and a carry bag.

 

The more drivers, the more accurately you can reproduce the individual frequency ranges. MDR-XBA-4, are due to the almost 300 EUR, Sony has installed four transducers in each case. How well the BA driver design really is, the first reviews will show. In April, the model for almost 300 EUR will come on the market.