Jeff Abel (born 29 April 1986), better known by his stage name Excision, is a Canadian producer and disc jockey. He is the founder of Rottun Recordings and Subsidia Records. Active since 2006, his first release, "Warning", was in 2007. He released an annual "Shambhala" mix album in the third quarter of each year until 2016. He started his own music festival (Lost Lands) the following year and releases annual mixes. He is known for his tours with immense sound systems and huge visual productions.