Maestro PS-1A Phase Shifter vs SolidGoldFX Aurras Optical Vibraphase
The Maestro PS-1A Phase Shifter and the SolidGoldFX Aurras Optical Vibraphase are both pedals sharing lush, low gain. The Maestro PS-1A Phase Shifter leans analog warmth and warm. The SolidGoldFX Aurras Optical Vibraphase leans modulated and shimmer.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.49% — somewhat different
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Derived from overlapping tonal signals across both listings.- lush
- low gain
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$180via Reverb
The Maestro PS-1A Phase Shifter is a vintage analog phaser introduced in 1971, prized for one of the lushest, warmest phase sounds ever produced. Rather than a sharp modern sweep, it delivers a warm, organic, and often subtle swirl with three speed settings, including a distinctive braking transition between fast and slow that sounds like a jet engine winding down. It defined classic 1970s phasing, heard on the electric piano of Led Zeppelin's No Quarter and on recordings by Steve Howe and Ernie Isley. It suits psychedelic, classic rock, and vintage tone enthusiasts who want immersive, lush movement. Some high-end loss occurs when engaged, easily corrected with a buffer upstream.
The SolidGoldFX Aurras is a boutique optical modulation pedal combining vibrato and phaser voicings into a lush, dimensional 'Vibraphase' effect. Built by the respected Canadian maker, it uses optical circuitry for smooth, organic modulation ranging from subtle shimmer to deep, swirling movement, favored by players wanting rich, vintage-flavored phase and vibrato textures.
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Genres this gear is documented as being used in.- Classic Rock
- Rock
- ambient
- indie
- shoegaze
- analog warmth
- warm
- crunchy
- modulated
- shimmer