40 Maestro Ps-1a Phase Shifter

Maestro PS 1A Phase Shifter 1970's Effect Pedal For Sale Soundgas Ltd
Maestro PS 1A Phase Shifter 1970's Effect Pedal For Sale Soundgas Ltd from www.vintageandrare.com


Welcome to our in-depth review of the Maestro PS-1A Phase Shifter. In this article, we will explore the features, performance, and overall sound quality of this iconic guitar effect pedal. The Maestro PS-1A Phase Shifter has been a staple in the guitar community since its introduction in the 1970s, and it continues to be a beloved and sought-after pedal to this day. Whether you're a seasoned guitarist or a beginner looking to experiment with new sounds, the PS-1A offers a unique and versatile sonic experience that is sure to inspire and captivate.

History of the Maestro PS-1A

Before delving into the specifics of the PS-1A, let's take a moment to appreciate its rich history. The Maestro PS-1A Phase Shifter was first introduced in 1975 as an evolution of the original PS-1 Phase Shifter. Designed by legendary engineer Tom Oberheim, the PS-1A quickly gained popularity among guitarists for its lush and swirling phase effects. Its distinctive sound can be heard on countless recordings from the '70s and beyond, making it a true classic in the world of guitar effects.

Design and Build Quality

The Maestro PS-1A Phase Shifter features a rugged and durable construction that is built to withstand the rigors of live performances. The pedal is housed in a sturdy metal enclosure, which not only provides protection but also adds to its vintage aesthetic. The control knobs and switches are well-spaced and easy to access, allowing for intuitive and seamless adjustments on the fly. Overall, the PS-1A exudes a sense of quality and craftsmanship that is synonymous with the Maestro brand.

Features and Controls

One of the standout features of the Maestro PS-1A Phase Shifter is its simple yet versatile control layout. The pedal offers four main controls: Rate, Depth, Resonance, and Manual. The Rate knob allows you to adjust the speed of the phase effect, from slow and subtle sweeps to fast and pronounced modulation. The Depth control determines the intensity of the phase effect, giving you the ability to dial in anything from a gentle shimmer to a swirling vortex of sound.

Resonance and Manual Controls

The Resonance control is unique to the PS-1A and adds an extra layer of depth and character to the phase effect. This knob allows you to emphasize specific frequencies within the phase sweep, resulting in a more pronounced and focused sound. Lastly, the Manual control lets you manually adjust the phase position, giving you precise control over the sonic character of the effect. Together, these controls offer a wide range of tonal possibilities, making the PS-1A a highly versatile and expressive pedal.

Performance and Sound Quality

Warm and Organic Tones

When it comes to sound quality, the Maestro PS-1A Phase Shifter truly shines. The pedal produces warm and organic tones that are reminiscent of the classic phase sounds of the '70s. Whether you're playing clean arpeggios or high-gain power chords, the PS-1A adds a touch of magic to your sound, immersing it in lush and swirling textures. The phase effect is smooth and musical, never overpowering or harsh, allowing your playing to shine through.

Versatility and Creativity

One of the great strengths of the Maestro PS-1A is its versatility. With its wide range of controls, this pedal can be used to create a variety of phase effects, from subtle and understated to bold and dramatic. Its ability to add depth and movement to your sound makes it an invaluable tool for both rhythm and lead playing. Whether you're looking to add a touch of psychedelic flair to your solos or create a pulsating rhythmic groove, the PS-1A has got you covered.


The Maestro PS-1A Phase Shifter is a true classic in the world of guitar effects. Its rich history, solid construction, and versatile sound make it a must-have pedal for any guitarist looking to explore new sonic territories. Whether you're a fan of classic rock, psychedelic, funk, or any other genre that benefits from lush and swirling phase effects, the PS-1A is sure to inspire and captivate. So go ahead, take the plunge, and experience the magic of the Maestro PS-1A Phase Shifter for yourself.