D-05X Super Audio CD / CD Transport

    The Overview

    A DAC following in the footsteps of the Grandioso D1, with uncompromising audio quality
    The D-05X uncompromisingly inherits the DAC design philosophy of the Grandioso D1 flagship device and updates all the circuit components from the original D-05 model to obtain sound quality that should be considered the standard for ultra-high end devices. It includes a large capacitance power supply with two large toroidal transformers at the core for independent left and right channels. The circuit size of the DAC has been doubled to have four differential circuits per channel. In terms of functionality, the D-05X features ES-LINK4 digital transmission, 34-bit D/A processing, the well-received ESOTERIC-HCLD line buffer from the Grandioso C1 preamp, and the unique ES-LINK Analog line transmission for high audio quality. It also supports playback at high resolutions such as DSD 22.5 MHz to obtain even more outstanding audio playback overall.

The Features

ESOTERIC-HCLD*: ESOTERIC's Exclusive Output Buffer Delivers Powerful Direct Current Transmission


 The ability to produce comparatively large currents and high slew rates are two of the most important factors that enable an analog output circuit to accurately transmit the wide dynamic range of a music signal without degradation. The D-05X offers the ultimate performance as a line driver by adopting high-performance elements with a high current output and exceptionally fast slew rate (2,000V/µs) for excellent response speed. Two of these buffer circuits are employed per channel. By configuring them differentially to drive the XLR outputs and in parallel to drive the RCA outputs, the instantaneous output current available is maximized. By maximizing instantaneous current output, the D-05X reproduces the full dynamics of music with breathtaking realism.

"ES-LINK Analog" Method for High Quality Current Transmission


 In addition to regular line connections (XLR and RCA), the D-05X features the new "ES-LINK Analog" transmission method developed by ESOTERIC. This is a current transmission signaling that utilizes the high performance of the HCLD buffer circuit and its enhanced ability to supply current at high-speed. This is the ideal analog audio transmission as it is free from impedance of signal route, thus fully maximizes the system's potential when connected to a compatible device.*

Wide-Range D/D Conversion Compatible with Many Sources


 In addition to playback at a source's original sampling frequency, the D-05X also features PCM up-conversion capability (2x, 4x, 8x) and PCM-to-DSD conversion that uses a proprietary algorithm to convert the PCM signal to fixed 22.5MHz DSD, enabling significantly smoother musical reproduction.

Digital Inputs Support High Sampling Rates

 The D-05X's coaxial and optical inputs support PCM signals up to 24-bit/192kHz and 2.8MHz DSD (DoP). Two XLR inputs support 48-bit/192kHz (ES-LINK3), 24-bit/384kHz (Dual AES 8Fs) and 5.6MHz DSD (DoP Dual XLR mode).

USB Support for 22.5 MHz DSD, 768 kHz/32-bit PCM, and Asynchronous Transmission

 The D-05X includes a USB terminal for connecting to computers, and the driver and "ESOTERIC HR Audio Player" playback software can be downloaded from the ESOTERIC website free-of-charge. The D-05X supports asynchronous transmission and playback at high sampling rates up to 22.5 MHz DSD and 768 KHz/32-bit PCM studio-master-quality source files.

Changeable XLR Output Pin Assignment

 As phase can be digitally inverted in a contactless system, either Hot 2 or Hot 3 can be selected with no deterioration in sound quality.

The Specs

Analog audio
XLR connectors 1 pair (L/R)
RCA connectors 1 pair (L/R)
Output impedance XLR 44Ω
Maximum output level
(when 1kHz, full-scale
signal input, 10kΩ load)
(when set to 0 dB)
RCA 2.5Vrms
Frequency response
(when 192kHz PCM signal input)
5Hz to 65kHz (-3dB)
S/N ratio 120dB (1kHz, A-weighted)
Distortion 0.0008% (1kHz)
Digital audio
ES-LINK connectors 1 pair (L/R)
Input signal
Linear PCM (ES-LINK4) 352.8/384kHz, 48-bit
XLR connectors 2 (Selectable: Dual AES x 1 or Single AES x 2)
Input level 5.0Vp-p
Input impedance 110Ω
Input signal format
(with Dual connection)
88.2 - 384kHz, 16/24-bit Linear PCM (DUAL AES)
88.2 - 192kHz, 48-bit
Linear PCM (ES-LINK3)
Input signal format
(with Single connection)
32 - 192kHz, 16/24-bit Linear PCM (AES/EBU)
RCA connector 1
Input level 0.5Vp-p
Input impedance 75Ω
Input signal format 32 - 192kHz, 16/24-bit Linear PCM (IEC60958)
Optical digital connector 1
Input level -24.0dBm to -14.5dBm peak
Input signal format 32 - 192kHz, 16/24-bit Linear PCM (IEC60958)
USB port 1 (Type B)
Input signal format 44.1 - 768kHz, 16/24/32-bit Linear PCM
DSD 2.8MHz, 5.6MHz, 11.2MHz, 22.5MHz
Clock output BNC connector 1
Output level TTL level equivalent (into 75Ω)
Output frequencies 44.1kHz, 88.2kHz, 176.4kHz, 48kHz, 96kHz, 192kHz,
22.5792MHz, 24.576MHz
Same as input frequency(when set to through output)
Output frequency precision ±0.5 ppm (when shipped from factory)
Clock input BNC connector 1
Input impedance 50Ω
Frequencies that can be input 44.1kHz, 88.2kHz, 176.4kHz, 48kHz, 96kHz, 192kHz
10MHz, 22.5792MHz, 24.576MHz (±10 ppm)
Input level TTL level equivalent
General Power supply AC 220-240V, 50/60Hz
AC 120V, 60Hz
AC 220V, 60Hz
Power consumption 25W
External dimensions
(W x H x D, including
445mm x 131mm x 360mm
(17 5/8″ x 5 1/4″ x 14 1/4″)
Weight 14kg (30 7/8 lb)
Included accessories Power cord x 1
HDMI cable x 1
Felt pads x 3
Owner's manual x 1
Warranty card x 1
- These products are made available in three different power supply variations, as shown in the chart above.
Make sure that the voltage shown on the rear panel matches the AC line voltage in your area.
- The shape of the AC inlet and plug of the supplied power cord depends on the voltage rating and destination country.
- Specifications and appearance are subject to change without notice.
- Weight and dimensions are approximate.