Majella Audio is a small Dutch synthesizer company based near Utrecht, Netherlands, that hand-builds analog synthesizers, Eurorack modules and pro audio gear in a two-person workshop. The brand's design philosophy centers on harnessing analog imperfections musically, producing instruments that sit between boutique experimental tools and practical studio gear.

The company is best known for the Implexus, a performance-oriented desktop analog synthesizer that fuses East-coast (subtractive) and West-coast (waveshaping, folding, audio-rate modulation) synthesis paradigms. The Implexus features a complex generator alongside a traditional oscillator, a 12dB/octave multimode filter, two syncable LFOs, a dedicated vibrato LFO, a stereo digital delay, MIDI/USB connectivity and a Eurorack-compatible patchbay on the rear, housed in an aluminum chassis with metal-shaft potentiometers.

Alongside the Implexus, Majella Audio produces a line of Eurorack modules — including the MVCF-I voltage-controlled filter, the MLEG LFO/envelope generator, the MCVC MIDI-to-CV converter (also offered as a DIY kit) and the VVCA dual velocity-controlled amplifier — built around the company's stated approach of keeping designs simple while adding practical extras like velocity control and polarization. Their products are stocked through specialist retailers such as Schneidersladen, KMR Audio, Perfect Circuit and Retro Gear Shop.

Majella Audio has 1 product cataloged on Equipboard, including Synthesizers. Their gear is featured by 1 artist, with the strongest followings in Orchestra and Classical. Notable users include Maarten Vos.