
Esoteric K1XE & PS1XE
Japanese high-end audio manufacturer Esoteric has introduced the Grandioso K1XE, a new flagship SACD player featuring its second-generation Master Sound Discrete DAC G2, alongside the optional Grandioso PS1XE external power supply. Combining Esoteric’s proprietary VRDS-ATLAS disc transport with an entirely revised digital-to-analog conversion architecture, the K1XE supports SACD and CD playback, high-resolution digital inputs, and integration with external network transports.
Building on the Grandioso K1X series, the new model introduces substantial improvements to its DAC circuitry and power supply architecture. Both components are scheduled for release in Japan on November 1, 2026, with international availability beginning in early November.

Master Sound Discrete DAC G2: A New Generation
At the heart of the Grandioso K1XE is Esoteric’s newly developed Master Sound Discrete DAC G2. Evolving from the company’s original discrete DAC architecture introduced in 2019, the second-generation design replaces conventional integrated DAC chips with a proprietary combination of FPGA processing and carefully selected discrete components.
The G2 architecture employs a 64-bit/512Fs delta-sigma modulator with dedicated digital processing algorithms optimized separately for PCM and DSD signals. It supports high-resolution audio up to 768kHz PCM and 22.5MHz DSD.

Esoteric has redesigned the low-noise resistor network and further separated the power supply paths for the FPGA and analog circuitry. The output stage incorporates a high-current dual-buffer design derived from the flagship Grandioso D1X SE, using four buffer circuits per channel.
According to Esoteric, these refinements improve low-level detail retrieval, dynamic expression, and spatial reproduction while maintaining the natural musical presentation that defines its flagship digital components.

VRDS-ATLAS Transport and Five Independent Power Transformers
Disc playback is handled by Esoteric’s VRDS-ATLAS mechanism, the company’s flagship SACD/CD transport platform. Its rigid construction and precision disc-clamping system are designed to stabilize disc rotation and minimize mechanical vibration during playback.
The K1XE employs a fully dual-mono DAC architecture, with independent power transformers dedicated to the left and right channels. A total of five transformers separately supply the DAC circuits, disc mechanism, digital audio circuitry, and microcomputer system.

Esoteric has also adopted discrete low-feedback DC regulation circuits to improve power supply stability. A multilayer chassis, semi-floating top panel, and proprietary isolation feet help reduce the transmission of mechanical vibration to sensitive audio components.
Together, these features reflect Esoteric’s emphasis on treating mechanical engineering, electrical isolation, and digital signal conversion as interconnected elements of high-fidelity reproduction.

ES-LINK 5 Expands Network Audio Connectivity
Beyond its role as an SACD player, the Grandioso K1XE can function as a high-end DAC for external digital sources. The newly introduced ES-LINK 5 digital input enables connection to Esoteric’s Grandioso N1T network transport, allowing users to access network-based music playback through the K1XE’s discrete DAC architecture.
Additional digital inputs include USB Type-B, AES/EBU, and optical connections. Analog outputs are provided through both balanced XLR and unbalanced RCA connectors, with the XLR outputs also supporting Esoteric’s proprietary ES-LINK Analog current-transmission system.
A 10MHz external clock input allows integration with compatible master clock generators, including the Grandioso G1X, providing further flexibility for high-end digital audio systems.
The K1XE does not incorporate a built-in network streaming platform. Network playback requires a separate transport or compatible digital source, allowing owners to configure their systems according to their preferred streaming hardware and software.


PS1XE: Dedicated External Power for DAC and Output Stages
The Grandioso PS1XE is an optional external power supply developed to further enhance the K1XE’s performance. It houses four large power transformers, independently supplying the left and right DAC circuits and their respective analog output buffer stages.
When the PS1XE is connected, the corresponding internal transformers in the K1XE are disabled. This arrangement increases the available power supply capacity while reducing the potential influence of transformer vibration and magnetic leakage within the player’s main chassis.

The PS1XE also incorporates power filtering circuits optimized for the new G2 DAC architecture, along with a multilayer chassis and semi-floating top panel.
In addition to the new K1XE, the PS1XE is compatible with the existing Grandioso K1X, K1X SE, and Grandioso N1 network DAC, providing an upgrade option for owners of earlier Grandioso components.
Specifications and Pricing
| Specification | Grandioso K1XE |
|---|---|
| Product Type | SACD/CD Player and DAC |
| Disc Transport | VRDS-ATLAS |
| D/A Conversion | Master Sound Discrete DAC G2 |
| DAC Architecture | FPGA-Based Multilevel Delta-Sigma |
| Maximum Input Resolution | PCM 768kHz / DSD 22.5MHz |
| Power Supply | Five Independent Transformers |
| Digital Inputs | ES-LINK 5, USB-B, AES/EBU, Optical |
| Digital Output | AES/EBU |
| Analog Outputs | XLR / ES-LINK Analog, RCA |
| External Clock Input | 10MHz BNC |
| Frequency Response | 5Hz–30kHz (-3dB) |
| Signal-to-Noise Ratio | 113dB |
| Total Harmonic Distortion | 0.001% (1kHz) |
| Dimensions (W×H×D) | 445 × 162 × 447mm |
| Weight | 34.3kg |
| Specification | Grandioso PS1XE |
|---|---|
| Product Type | External Power Supply |
| Power Transformers | Four |
| Compatible Models | K1XE, K1X, K1X SE, N1 |
| Dimensions (W×H×D) | 445 × 132 × 451mm |
| Weight | 23.3kg |
The Grandioso K1XE is priced at ¥4,180,000 in Japan, while the PS1XE carries a price of ¥1,540,000, both including tax. Official US pricing has been announced at $45,000 for the K1XE and $19,000 for the PS1XE.
With the Grandioso K1XE, Esoteric continues to refine physical disc playback while extending the capabilities of its flagship digital source components. The new G2 discrete DAC, expanded digital connectivity, and optional external power supply offer a flexible upgrade path from a standalone SACD player to a more elaborate high-end digital audio system.
Source : Esoteric
https://www.esoteric.jp/en/support/news/745?utm_source=chatgpt.com
















































