Acustica Audio creates faithful software plug-in emulations of rare vintage or modern hardware gear and new hybrids impossible in the analogue domain. Our core tech is based on dynamic sampling and Volterra series nonlinear convolution. This approach help us create plug-ins that deliver gear-like transient response, accurate phase, and tone which will make you smile! Our main product, the 'Nebula' gear sampler is in version 4 now and it has been around since 2005. N4 and the free N4 Player are both capable of loading 3rd party gear libraries. Our website hosts the official online store for such libraries and an entire line of standalone Nebula-based plug-ins know as 'the Aqua range'.