Psionic Audio is a boutique guitar equipment company based in Memphis, Tennessee, founded by Lyle Caldwell. The company built its reputation on a small line of handcrafted effects pedals, including the Telos overdrive, the Triad preamp, and the 3.14 distortion, as well as limited-run amplifier heads such as the Aztlan.

The company's work centers on vintage amplifier restoration, custom amp design, and meticulous repair and modification services for guitarists. Psionic Audio also produces technical content on YouTube covering amp servicing, tone, and electronics — a channel that has become a well-known reference point within the guitar amp tech community.

Psionic Audio has 4 products cataloged on Equipboard, including Overdrive Effects Pedals, Boost Effects Pedals, and Fuzz Effects Pedals. Their gear is featured by 1 artist, with the strongest followings in Rock and Blues. Notable users include David Grissom.