Hard

Hard Trance is a genre of music that originated in Germany in the early to mid-90's and is one of the earliest forms of trance. It was one of the most common forms of Trance throughout the decade, characterized by strong kicks, with a very dry and heavy sound. Now it is much more rare compared to other forms of Trance and House music, but still has a close fanbase in Japan, the UK, and other parts of Europe.

Source : http://en.wikipedia.org/wiki/Hard_trance