Jessup Amps is a boutique amplifier and effects builder specializing in handwired tube amps, preamps, and pedals based on classic vintage circuits. The lineup includes guitar and bass amplifiers such as the BT-06, a 20–30W head modeled on the Sunn Model T, alongside speaker cabinets, rack preamp units, power amps, amp switchers, and signal-routing systems for multi-amp rigs. Construction leans on point-to-point hand wiring with new-old-stock components.

The brand has produced several signature artist pedals, including the Tom Gabriel Warrior Morbid Tube Distortion, the Kenny Hickey Signature Chorus, the Max Cavalera Signature Heavy Metal Distortion, and Dylan Carlson's Scalphunter and Earth 2 Rat+ pedals. The aesthetic and product direction lean toward the doom, sludge, and heavy underground guitar world the company's collaborators come from.

Jessup Amps has 2 products cataloged on Equipboard, including Chorus Effects Pedals and Guitar Amplifier Heads. Their gear is featured by 2 artists, with the strongest followings in Rock and Metal. Notable users include Kenny Hickey and Will Putney.