CIOKS is a Danish company specialising in professional power supplies for guitar effect pedals, founded in 1991 by Poul Ciok. The company's first product, the CIOKS Baby, introduced musicians to a reliable multi-output power solution and laid the foundation for what would become one of the industry's most respected brands.

As digital effects became increasingly popular, CIOKS expanded its range with innovative products such as the Big John and Double Jack, providing additional outputs and multiple voltage options to meet the evolving needs of modern pedalboards.

Today, CIOKS is recognised worldwide for designing fully isolated power supplies that deliver exceptionally clean, stable and noise-free power. Their products eliminate ground loops, reduce unwanted hum and provide reliable operation for both analog and digital effects pedals.

From compact pedalboards to large professional touring systems, CIOKS power supplies are trusted by guitarists and bass players for their compact design, outstanding reliability and advanced engineering. With a continued focus on innovation, flexibility and premium build quality, CIOKS remains one of the leading names in pedalboard power solutions.