Andreas Horwath aka Andrew Richley first came into contact with electronic music through ChicagoHouse in 1985. Via Acid he arrived at Techno beginning of 1990, where he also gathered his first experiences as a DJ. He played in various clubs in his area. In time his interest for the origination of the music grew. In mid 1995 he established the basis for numerous releases with his friend Tilmann Bussler aka Ryan Rivera. Tilmann first became interested in Electronic music in 1992. He went out to different venues like such clubs as Omen FFM Oz Stuttgart. Later he started to organize parties in his hometown Karlsruhe together with friends. The partys at the locations like Subway or Tempel went really successfully in Karlsruhe. At the end, more than 1.200 people were crowed into Subway. At this time he came into contact with Andreas Horwath. They met through a girlfriend in a cafe. They had all the same interests. Andreas was already DJ-ing. Tilmann arranged the first DJ gigs for Andreas in Karlsruhe, a city in the south of Germany. One and a half year later they decided to buy musical equipment and started their first projekt called "Tesox".

Half a year later they were signed by Plastic City. Tesox became very famous and they had club hits like "Funky Bassline" or "Go ahead London". With Tesox Andreas and Tilmann played live throughout the whole of Europe (for example Energy Zuerich 1995). They also had releases on Plastic City America and Plastic City UK (under the psyeudonym "Skool Phunk").

Andreas Horwath also had his first solo release under his new artistname Andrew Richley on Plastic City America before he and Tilmann Bussler aka Ryan Rivera went more and more into producing harder techno-sounds. Later, they released sucessful records on labels like Fine Audio Recordings, Primate and their own imprint AMC.