SKnote is an Italian audio software and hardware developer founded by Quinto Sardo, based in Sicily. The company specializes in affordable "analog in the box" plugins that emulate classic studio gear, alongside a smaller line of analog mixing and dynamics hardware. Its catalog spans dynamics processors, equalizers, channel strips, amp simulations, and creative effects, with a focus on low CPU usage and minimal latency for everyday mixing workflows.

On the software side, SKnote is known for plugins such as Disto (a Distressor-style compressor), Roundtone (tape machine emulation), Verbtone (plate reverb), MainEQ (dynamic EQ), Comp760 and F76 (FET-style compressors), A25 (a take on the API 2500 bus compressor), MasterLimiter, and IR-Lab for cabinet impulse response work. The lineup also includes guitar and bass amp emulations like DualR, TwinR, R200 and Deluxe1, plus vocal tools such as MetaVocals.

The hardware side centers on the Etna series — including the Etna-M 8-channel analog mixer with built-in dynamics, the 32-channel Etna-R rack mixer, the Etna-Q dynamic EQ, and matching 500-series modules — along with outboard pieces like the Leso-500 PWM compressor, Vastaso MarkII, Comp760 FET compressor, and the Catena Mark II multi-band dynamics processor.

SKnote has 3 products cataloged on Equipboard, including Effects Processors, Exciter Plugins, and Compressor Plugins.