Synsonic Instruments is a small, one-person audio plugin developer based in Germany, focused on bringing analog drum machine sounds into software form. The company makes VST2, VST3, and AU plugins aimed at composers, producers, and sound designers, with a stated emphasis on analog-style sound quality and minimal, easy-to-use interfaces.

The catalog centers on bass drum synthesis and drum machine emulation. The free BD-808 and BD-909 plugins model the kick drum circuits of the Roland TR-808 and TR-909 respectively, and have been widely circulated as go-to freeware kick generators. The commercial line includes BD-808 Pro, an expanded take on the 808 kick with additional sound-shaping controls; BDE-01, a dedicated bass drum synth split into Sound, Noise, and Master sections; and Apollon, a drum computer with eight fully synthesized voices — bass drum, snare, low and high toms, closed and open hi-hats, clap, and rimshot — and a built-in sequencer inspired by classic analog drum machines.

The brand operates as an independent, hobbyist-scale project rather than a large plugin house, and is most often discussed in producer circles for its 808/909 kick freeware and for the broader Apollon / BDE-01 / BD-808 Pro lineup.

Synsonic Instruments has 2 products cataloged on Equipboard, including Synth Plugins and Drum Machine.