Crazy Tube Circuits combines optical and FET compressors with Golden Ratio (Phi) pedal

Greece's premier pedal builder Crazy Tube Circuits has unveiled the Golden Ratio Φ (Phi) - a compressor that crams optical and FET circuits into one stompbox.

The two compression options span gentle dynamic lifts to extreme coloured squash, with the option of parallel compression via a blend knob.

Internal circuitry boosts a 9V power input up to 25V for additional headroom, and CTC also promises low-noise performance and full-frequency response, making this pedal suitable for guitar and bass players.

The Golden Ratio (Phi) is available for €250 from Crazy Tube Circuits, and ships at the end of August 2016.

Michael Astley-Brown

Mike is Editor-in-Chief of, in addition to being an offset fiend and recovering pedal addict. He has a master's degree in journalism, and has spent the past decade writing and editing for guitar publications including MusicRadar, Total Guitar and Guitarist, as well as a decade-and-a-half performing in bands of variable genre (and quality). In his free time, you'll find him making progressive instrumental rock under the nom de plume Maebe.