![B904](https://geo-media.beatport.com/image_size/590x404/b7648397-97d3-4ac7-ac52-49323de7cbb2.jpg)
Who or what is B904? B904 is also known as Kristjan Karu, a talented techno DJ and producer, whos sounds are flavoured mostly with dark & acid sounds. Kristjan takes also a part project called "Maincap & Coldshiver" where he started his DJ-ing career a long time ago when he was only 15 years old. He played with Kaspar (Maincap) many years in the biggest/smallest events in Estonia like Airport Jam, Save Rave, Tragöödia etc. Also they were residents in radioshow called "Tragöödia" and it took place in local radio station "Raadio 2". A long period, now about 10 years, has influenced many harder Techno/Trance styles. Nowadays they mostly focus on Tech House/Deep House sounds. While that is going on with Maincap & Coldshiver, B904 is created so Kristjan could