Cornerstone's cavernous Nucleo reverb, inspired by a decommissioned nuclear plant, comes to the computer

Cornerstone has released its first-ever software version of the Nucleo, the reverb pedal it developed with guitarist and YouTuber Paul Davids, shown at Guitar Summit 2026. The hardware pedal's signature sound — including its Reactor mode, built from impulse responses Davids captured inside Austria's decommissioned Zwentendorf nuclear plant — has, until now, only existed as physical hardware.

The software brings over the pedal's core feature set: three reverb engines (Reactor, Room and Hall), each with three voicings (Normal, Vintage and Lo-Fi), plus the Freeze function that lets a reverb tail sustain indefinitely while the player keeps playing over it. That means the same cavernous, cinematic reverb sound built around Davids' real-world recording of an abandoned power plant's acoustic space can now sit directly inside a DAW rather than requiring the physical unit on a board or in a rack.

Cornerstone hasn't announced pricing or a release date for the software.