D-02 35bit Dual Mono D/A Converter


Delivers a stress-free musical experience in its original form to listeners.

Esoteric’s P-02 SACD/CD transport and D-02 system DAC, aim at the highest level of audio performance. This is only possible using separate audio components, based on the company’s evolving product design concepts. The P-02 and D-02 have incorporated a number of new technologies such as “ES-LINK3” and “35-bit D/A processing.” The P-02 and D-02 are new design implementations from Esoteric, which are totally dedicated to evolving the critical listening experience for music enthusiasts.


“35-bit D/A processing” dual monaural D/A converter

 The D-02’s D/A converter ICs incorporate top-end 32-bit AK4399 chipsets by ASAHI KASEI Microdevices Corporation. Eight (8) circuits per channel are provided to achieve phenomenal linearity and low noise. In addition to direct processing of DSD signals, the D-02 has newly adopted a “35-bit D/A processing” algorithm that converts PCM signals to analog signals, at a high resolution of 35 bits.
As a result of this new technology, the D-02 achieves an improved level of delicate sound quality and imaging with ultra high resolution.
The D/A converter circuits are mounted on separate analog audio boards for each of the left and right channels. All components, including the power circuits and power transformers, are separated for right and left channels to implement a fully dual-monaural configuration. This identical layout per channel, achieves ideal power supply performance and excellent channel separation, enabling high-quality playback with a deep and wide soundstage.

A low distortion, high linearity, discrete Class A buffer

 The D-02 features fully discrete Class A buffer amplifiers with four circuits per channel, which is twice the amount of components used in the K series players. These extended buffer circuits are configured as a “double-parallel fully balanced buffer amp,” when the XLR outputs are selected, and switched to a “quadruple-parallel unbalanced buffer amp,” configuration when RCA outputs are selected. The D-02 offers an exceedingly high drive capability by means of a low-distortion and high linearity Class A buffer amplifier and a high-voltage toroidal core power supply unit of +/-22V.

Wide-ranging D/D conversion functions

 The D-02 provides a wide variety of D/D conversion modes for the PCM format, including x2 and x4 up-conversion, and PCM to-DSD conversion, in addition to original frequency, native data PCM processing.
Four types of digital filters and digital filter OFF mode The D-02 has four types of user selectable digital filters for PCM signal processing. Two types of short-delay digital filters and two types of Finite Impulse Response (FIR) digital filters are included. These short-delay digital filters eliminate the pre-echo effect in the impulse waveform to reproduce a more natural audio signal. A digital filter OFF mode is also available.

Five digital input systems supporting

 The D-02 support streaming digital audio from the P-02 or any other digital source device such as music servers, audio computers or other products types. It can accept super-high resolution streams from USB, S/PDIF/ AES/EBU, ES-Link3 or iLINK.
The D-02 is equipped with wide-ranging digital inputs of five types for eight channels (XLR x 2, iLINK 4p/6p x 1, USB x 1, coaxial x 2, and optical x 1). The D-02 can be used for high-sampling-rate sources of up to 24-bit/192kHz. XLR x 2 provides additional support for high-sampling-rate/high-bit inputs of 48-bit/192kHz (ES-LINK3) and 24-bit/384kHz (Dual AES 8Fs).
Asynchronous, 24-bit/192kHz USB inputs with the ESOTERIC supplied drivers provides original PC or MAC driver software to support asynchronous, 24-bit/192kHz high resolution data input through its USB interface. The internal USB isolator prevents interference from computer generated noise and enhances studio master-quality digital source playback performance. Both 32 bit and 64 bit PC or MAC operating systems are supported for asynchronous USB transmission.

High-precision digital volume attenuator

 The D-02 is contains a high quality 32 bit digital volume attenuator function, allowing direct connected to a power amplifier. The 32 bit operating system allows for a full 28 bits of audio being processed when the DAC is attenuating 60 db. This process allows better audiophile fidelity than a 24 bit DAC even when the signal is attenuated.

Excellent usability

 The D-02 can switch the output voltage of XLR audio outputs in accordance with the input sensitivity of the amplifier (0dB/+6dB). Either Hot 2 or Hot 3 can be assigned for XLR audio outputs.

Analog Audio Outputs
Terminals XLR connector (2ch) ×1
RCA connector (2ch) ×1
Output impedance XLR: 100 Ohms
RCA: 47 Ohms
Maximum output level (1 kHz, full-scale, into 10k Ohms) XLR (set to 0dB): 2.45Vrms
RCA:2.45 Vrms
Frequency response
(192kHz PCM signal input)
5 Hz to 55 kHz (- 3 dB)
S/N ratio 115dB
Total harmonic distortion 0.0008% (1 kHz)
Digital Audio Input: XLR
Terminals XLR x 2 (both XLR1 and XLR2 connectors are used for Dual input)
Input level 5.0 Vp-p
Input impedance 110 Ohms
Dual connection
Input sampling
32-384.8 kHz, 16-24 bit Linear PCM (Dual AES format)
32-192 kHz, 16-48 bit Linear PCM (ES-LINK3 format)
DSD (ES-LINK1, ES-LINK2 format)
Single connection
Input sampling
32-192 kHz, 16-24 bit Linear PCM (AES/EBU format)
DSD (ES-LINK1, ES-LINK2 format)
Digital Audio Input: RCA
Terminals RCA x 2
Input level 0.5 Vp-p
Input impedance 75 Ohms
Input sampling
32-192 kHz, 16-24 bit Linear PCM (IEC60958 format)
Digital Audio Input: Optical digital
Terminals Optical digital x1
Input level 24.0 – .14.5 dBm peak
Input impedance 75 Ohms
Input sampling
32-192 kHz, 16-24 bit Linear PCM (IEC60958 format)
Digital Audio Input: i.LINK (AUDIO)
Terminals i.LINK (AUDIO) x 2 (6-pin, 4-pin) S400
Input level 24.0 – .14.5 dBm peak
Input sampling
32-192 kHz, 16-24 bit, Linear PCM
Digital Audio Input: USB
Terminals USB port . B x1
Input level 24.0 – .14.5 dBm peak
Input sampling
32-192 kHz, 16-24 bit, Linear PCM
PLL2 locking range
Lockable frequency range ±5 ppm for each sampling frequency
Clock Output
Connector BNC x1
Output frequency
44.1, 88.2, 176.4, 48, 96, 192 kHz, 22.5792, 24.576 MHz
same frequency as input (when output set to thru)
Output level equal to TTL level (into 75  load)
Output frequency precision ±0.5 ppm (when shipped new)
Clock Input
Connector BNC ×2 (WORD IN, 10MHz IN)
Input frequency compatibility
44.1, 88.2, 176.4, 48, 96, 192 kHz
22.5792, 24.576 MHz (±5 ppm)
10MHz IN:
10 MHz (±5 ppm)
Input impedance WORD IN 75 Ohms
10MHz IN 50 Ohms
Input level WORD IN equal to TTL level
10MHz IN Vrms sine wave
Power supply AC 230V, 50Hz
AC 120V, 60Hz
AC 220V, 60Hz
Power consumption 14W
External dimensions
(W x H x D, including protrusions)
445 x 162 x 438 mm
(17 1/4″ x 6 3/8″ x 13 1/4″)
Weight 27.4 kg (60 2/5 lbs)
Included accessories
Power cord set x 1; Felt pads x4; Owner’s manual x 1; Warranty card x 1