However, what do we mean exactly? Each audio device we acquire comes with specifications and certifications that guarantee a certain quality and fidelity level in the sound that will come out of them. At Demolandia we are responsible for collecting a library with the most useful and important demonstration files, trailers and tests that have been appearing along with those equipment, codified to the best quality and with less loss to guarantee the greater fidelity in the sound, thus ensuring an accurate evaluation of the performance of your speakers, amplifiers, headphones or any other audio device. In conclusion, who are we? At Demolandia we are enthusiasts of technology, lovers of high quality and fidelity, that we have decided to facilitate to our users the use of the maximum potential of their audiovisual devices and provide them with such an amazing vision of the history and evolution of these technologies. Therefore, if you are one of those who checks each label (Dolby, THX, DTS) in the equipment boxes, movies, DVD, Blu-Rays or video games you acquire, you have come to the right place.