Cornerstone

Cornerstone creates boutique effects pedals designed for players who want expressive feel, dynamic response and inspiring guitar tones. Known for their amp-like drive sounds, musical compression, transparent boost and carefully voiced circuits, Cornerstone pedals are built to respond naturally to your playing, guitar and amplifier.

Whether you are chasing smooth overdrive, touch-sensitive gain, refined clean boost or a more articulate pedalboard foundation, Cornerstone offers tone tools that suit worship, blues, rock, session work and everyday creative playing. Their pedals are popular with guitarists who want premium build quality, practical controls and sounds that feel alive under the fingers.

Explore our Cornerstone collection at Gsus4 and find boutique pedals designed for expressive tone, natural dynamics and professional pedalboard performance.