Jason Moser is a guitar technician and pedal builder known for custom one-off builds for touring musicians. He is associated with R3D Electronics and is most widely recognized for his work with St. Vincent (Annie Clark), for whom he constructed the "Ten Years (Is A Decade)" — a stompbox that adapts the preamp circuit of Peavey's 1980s solid-state Decade practice amplifier into a pedal format. The Decade circuit gained attention after Josh Homme identified it as a source of the Queens of the Stone Age guitar sound, driving vintage prices up and prompting the custom pedal solution.

Moser's output is boutique and largely custom rather than production-line, and his builds have appeared on the rigs of several well-known guitarists. The Ten Years pedal has been documented on Nick Valensi's (The Strokes) touring pedalboard in addition to St. Vincent's. Moser's work sits at the intersection of pedal design, amp circuit adaptation, and synth building, reflecting a guitar-tech background rather than a traditional effects company.

Jason Moser has 1 product cataloged on Equipboard, including Distortion Effects Pedals. Their gear is featured by 11 artists, with the strongest followings in Rock, Pop, and Electronic. Notable users include Nick Valensi, Troy Van Leeuwen, and Taylor York.