AlphaTheta is a Japanese company, previously known as Pioneer DJ, which specializes in designing equipment and solutions for DJs and music professionals. It is recognised in particular for its controllers, plates, mixers and sound systems, offering products high-end allying innovation, performance and reliability.

AlphaTheta has positioned itself as a benchmark in the DJing industry, with products used by artists and DJs around the world. The brand places particular emphasis on the creativity, interactivity and connectivity in its equipment.