3Degrees Audio is a boutique effects pedal builder founded in 2016 by Mark Seel, an embedded software and firmware engineer who has consulted for audio companies including Chase Bliss Audio, where he contributed programming work on the Blooper. The company operates as a one-person outfit combining Seel's engineering background with a small, hand-built approach to guitar and studio effects.

The brand's flagship product is the Bygones, a stereo "nostalgia" multi-effect pedal that blends pitch shifting, delay, and lo-fi degradation with backlit colored knobs, seven programmable presets, MIDI control, and dual relay true bypass housed in a machined anodized aluminum enclosure. The Rewire followed as a 4x4 matrix mixer with five per-channel effects — delay, high- and low-pass filters, a noise gate, and a dynamics compressor — along with full MIDI integration and presets. Later designs have included the Lumen stereo harmonic tremolo and the Camber stereo three-band parametric EQ.

3Degrees Audio pedals are sold direct and through marketplaces like Reverb, and the brand's output skews toward experimental, preset-driven designs aimed at players looking for textural, stereo-capable processing rather than traditional single-function stompboxes.

3Degrees Audio has 1 product cataloged on Equipboard, including Multi Effects Pedals. Their gear is featured by 1 artist, with the strongest followings in Pop and Folk, World, & Country. Notable users include Jeremy Lutito.