Cornerstone
Latest Cornerstone guitar news, new electric and acoustic guitars, signature models, artist collaborations, and releases tracked by Guitar Radar.
Guitar Radar follows Cornerstone through 2 stories and 2 product releases, covering new gear, launches and company news as they happen. Most of it sits under gear. The most recent story, from Sep 27, 2026, is “Cornerstone's cavernous Nucleo reverb, inspired by a decommissioned nuclear plant, comes to the computer”. The newest product in the releases catalog is the Cornerstone Gladio MKIII.
Stories
Cornerstone's cavernous Nucleo reverb, inspired by a decommissioned nuclear plant, comes to the computer
The Paul Davids-designed pedal's Zwentendorf-inspired Reactor mode and Freeze effect are now available as standalone software, not just hardware.
Sep 27, 2026
Cornerstone revives its Dumble-style Gladio pedal as the MKIII, with per-channel compression
The reissued double preamp — discontinued since 2022 — adds separate Deep and Ratio controls and lets both channels chain in either direction.
Sep 27, 2026