Maestro PS-1A Phase Shifter vs Spaceman Explorer 6-Stage Phaser
The Maestro PS-1A Phase Shifter and the Spaceman Explorer 6-Stage Phaser are both pedals sharing lush, analog warmth, low gain. The Maestro PS-1A Phase Shifter leans crunchy. The Spaceman Explorer 6-Stage Phaser leans modulated and dynamic.
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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.52% — moderately similar
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Genres both listings are associated with.- Classic Rock
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Derived from overlapping tonal signals across both listings.- lush
- analog warmth
- low gain
- warm
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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 Spaceman Explorer is a hand-wired six-stage analog optical phaser built in Portland, Oregon, known for a sweet, distinct phase voice that is sometimes liquidy and smooth, sometimes chewy and lush. Its frequencies ebb and flow organically while offering deep tone-shaping through resonance, mix, range and volume controls. The Resonance control adds feedback for over-the-top phasing, Range sets the low-frequency extension, and a wide Rate control spans extremely slow to very fast modulation, with five selectable wave shapes including sine, ramp up, ramp down, triangle and square. True-bypass relay switching with a soft-touch footswitch rounds out a boutique build that sits at the intersection of organic warmth and precise, mechanical pulse, suiting psychedelic, classic-rock and experimental textures.
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Genres this gear is documented as being used in.- Rock
- Experimental
- crunchy
- modulated
- dynamic
- shimmer
- mid-forward