Esoteric Grandioso PS1 External High-Performance Power Supply

Grandioso PS1 External Power Supply Optimises the K1X Super Audio CD Player

Grandioso PS1 is an external high-performance power supply created exclusively for the Grandioso K1X Super Audio CD Player. The K1X’s integrated structure already offers compact, space-saving convenience, yet the PS1 elevates it to a performance tier approaching ESOTERIC’s flagship P1X/D1X system. By isolating power delivery and reinforcing the K1X’s VRDS-ATLAS transport and Master Sound Discrete DAC, the Grandioso PS1 transforms playback into a breathtakingly lifelike audio experience, reproducing music with the texture, depth, and realism of a live performance.

Grandioso PS1 External Power Supply Uses Four Independent Transformers

Grandioso PS1 is engineered with four robust, independent power transformers, designed to feed the K1X’s D/A converter module with absolute precision. In standard configuration, the K1X relies on one transformer per channel for both the analog front (D/A section) and rear (buffer amplifier section). When the PS1 is connected, these circuits gain full separation with two dedicated transformers per channel. This expansion not only enhances clarity by removing crosstalk between analog and digital signals but also doubles the power supply circuit capacity, ensuring ample, stable DC power that enriches tonal density while reducing noise to reveal subtle musical detail.

Grandioso PS1 External Power Supply Reduces Vibration and Flux Leakage

Grandioso PS1 is designed to reduce transformer-induced vibration and magnetic flux leakage that can degrade analogue purity. By shutting down the K1X’s internal analog power transformers when connected, the PS1 effectively shields the delicate D/A circuits from mechanical and electromagnetic interference. The result is a cleaner soundstage, with natural timbre, refined micro-dynamics, and improved spatial separation.

Grandioso PS1 External Power Supply Improves Digital and Analogue Isolation

Grandioso PS1 establishes a fully optimised dual-supply structure by separating digital and analogue power feeds. The K1X retains its internal supply exclusively for digital circuits and transport mechanisms, while the PS1 delivers pristine, high-quality DC power solely to the analogue stages. This division creates true digital/analogue isolation, yielding dramatic improvements in resolution, tonal balance, and overall musical fidelity.

Grandioso PS1 External Power Supply Features High-Rigidity Chassis

Grandioso PS1 incorporates a dual-layer chassis architecture built to manage transformer vibration. Four large transformers are mounted within a rigid aluminium enclosure, where separation of internal layers prevents mutual interference between circuits. Thick aluminium panels lend mass and stability, while ESOTERIC’s patented pinpoint feet (JP4075477 and JP3778108) ground micro-vibrations that can compromise sound. This meticulous construction assures a silent background and maximises the acoustic benefits of the PS1’s advanced circuitry.

Grandioso PS1 External Power Supply Employs Ultra-Thick DC Cables

Grandioso PS1 is supplied with a pair of ultra-thick 1.0m DC cables, designed for uncompromising signal stability and tonal accuracy. These cables, terminated with precision die-cast aluminium connectors identical to those used in ESOTERIC’s P1X, D1X, and C1 reference components, guarantee secure, high-conductivity connections. With independent left and right channel outputs, the PS1 delivers balanced, unwavering power flow that unlocks the full expressive potential of the K1X Super Audio CD Player.