Crazy Tube Circuits GOLDEN RATIO PHI V2 Compressor
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Crazy Tube Circuits
https://www.crazytubecircuits.com
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Three Compression Approaches Combined in One Pedal
The Golden Ratio Phi was designed as a true "compression toolbox": instead of a single fixed-character circuit, it offers three independent analog architectures, each with its own voice and way of responding to your playing. This approach allows you to choose the compression based on the role in the mix: transient control, sustain, smoothing, or simple signal enhancement. The result: a pedal capable of covering typical studio uses while remaining immediate on a pedalboard.
For Whom, Which Styles, and In What Contexts?
The Phi is aimed equally at demanding guitarists and bassists seeking a silent, precise, and versatile compressor. In clean settings, it provides tightness and clarity for funk, pop, country, jazz, or worship. In crunch and overdriven tones, it helps stabilize levels, even out riffs, and make leads more present without pushing volume.
On stage, its low noise and full frequency response make it an excellent choice for modern pedalboards. In the studio, the parallel compression and three voicings allow fine-tuning placement in the mix, whether you play directly into an interface, in front of an amp, or on instruments other than guitar and bass.
Technical specifications
| Effects | Compressor | Type | sector |
| Technology | Analog | Use | electric guitar |
| Format | Pedal | ||
Questions frequently asked
What are the differences between the FET, TA, and OPTO modes?
The circuit selector provides access to three independent analog architectures. The FET mode favors a fast response and can produce slight musical distortion when pushed. The TA mode tightens transients, while the OPTO offers softer attack and release thanks to its photoelectric cell.
Is this compression pedal suitable for bass?
The pedal is designed for electric guitar and described as suitable for bass. Its full frequency response and low noise floor allow it to stabilize bass line levels.
What power supply is required for the Golden Ratio Phi V2?
The required power supply is a 9 V DC source with a negative center. An internal voltage multiplier allows switching between 9 V and 18 V DC operation.
Does the Golden Ratio Phi V2 feature parallel compression?
Parallel compression retains the dry signal while adding sustain and hold to the compressed signal.
Which mode should be used for crunch riffs or more present leads?
In FET mode, compression adds attack and character to crunch or overdriven sounds. The advertised ratio range extends from 1:1 to 20:1 to control level management.



