Xhun Audio is a boutique software instrument developer founded by Bruno Bordi, specializing in physical modeling synthesis. The company's philosophy centers on simulating the behavior of real acoustic and electronic components at the circuit level, producing sound that is generated rather than sampled. Xhun Audio's product line spans virtual instruments and effects, all built on advanced component-modeling techniques that aim to preserve the expressivity and nuances of their hardware counterparts.

The company's flagship instrument, LittleOne, is a detailed analog modeling emulation of the Moog Little Phatty synthesizer, replicating the frequency responses and ranges of each hardware component — oscillators, filter, envelopes, and LFO. ZeroBox takes a similar approach to recreate the iconic Roland TB-303 Bassline synthesizer, complete with its distinctive diode-ladder filter and accent circuit. IronAxe is a physically modeled electric guitar that simulates individual string behavior, pickup configurations, and includes stompbox effects and amp/cabinet modeling. ResonHeart is an aerophone-based physical modeling synthesizer capable of producing both familiar acoustic instrument tones and experimental textures. RawPrime takes a more unusual approach, modeling hybrid digital-analog components derived from 1970s–1980s telecommunications hardware to create what the company describes as "a past that never was."

On the effects side, the lineup includes ShineVerb (reverb and spatial processing), FilterCult (analog-modeled filtering), ModFlorus (modulation effects), and several specialized processors including KickBeat, SnareClack, WindChant, WaterStream, and FireBurn. All products are available as VST2, VST3, and Audio Unit plugins for macOS and Windows.