The Torre de Madrid is an emblematic skyscraper 142 meters high, located in Plaza Spain Madrid, between Princesa and Gran Vía streets. Completed in 1960, was the tallest concrete building in the world of his time and is currently one of the highest in Madrid. In this building is located the five-star hotel, equipped with a public address system of more than 300 speakers and connected to a distributed sound system dSOUND. The rooms feature a 2653-AS amplifier that distributes audio from television to speakers installed in the bathroom and the lounge, while links to the general public address system. The hotel also has several intercom systems in refuge areas, in different entrances and in the restaurant kitchen.