Studiologic is the instrument brand of Fatar, the Italian keyboard action manufacturer founded in 1956 by Lino Ragni and headquartered in Recanati, Italy. While Fatar is renowned throughout the music industry as a supplier of keybeds and key actions to many of the world's leading synthesizer and digital piano manufacturers, the Studiologic brand represents Fatar's own line of finished instruments. The brand debuted in 1986 with the STUDIO 88, a pioneering 88-key masterkeyboard that helped define the MIDI controller category.

Studiologic's product range spans MIDI controller keyboards, stage pianos, digital pianos, and synthesizers. The SL series of controller keyboards — including models like the SL88 Grand, SL88 Studio, and the SL MK2 — are widely used by touring keyboardists and studio musicians who need premium Fatar key actions in a dedicated controller. The Numa line covers stage pianos and portable digital pianos, with the Numa X Piano and Numa X Piano GT representing the flagship offerings, featuring physical modeling sound engines and Fatar's proprietary hammer-action keybeds. The Numa Compact series serves as a more portable alternative for gigging musicians.

The Sledge synthesizer, introduced in 2012, brought Studiologic into the synth world with a distinctive design and sound engine developed in collaboration with Waldorf. Built in Italy with Waldorf-designed electronics, the Sledge pairs a Fatar keybed with virtual analog and wavetable synthesis. Studiologic's unique position as the consumer-facing brand of one of the keyboard industry's most important action manufacturers gives their instruments a direct advantage in key feel and build quality.

Studiologic has 42 products cataloged on Equipboard, including MIDI Keyboard Controllers, Digital Pianos, and Synthesizers. Their gear is featured by 38 artists, with the strongest followings in Rock, Electronic, and Pop. Notable users include Geoff Downes, Matthew Healy, and Jacob Collier. Most Studiologic products fall in the mid-tier range — professional-grade without flagship pricing.