D-02 (top side)
D-02 (bottom side)
"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 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 con- verts 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 compo- nents, 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 chan- nel separation, enabling high-quality playback with a deep and wide soundstage.
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-
35bit Dual Mono D/A Converter
e state-of-the-art, 35 bit resolution
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 am- plifier 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
for high sampling rate support
The D-02 is equipped with wide-ranging digital inputs of five types for eight channels (XLR x2, i.LINK 4p/6p x1, USB x1, coaxial x2, and optical x1). The D-02 can be used for high-sampling-rate sources of up to 24-bit/192kHz. XLR x2 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 input
Esoteric provides original PC driver software to support asynchro- nous, 24-bit/192kHz high resolution data input through its USB interface. The internal USB isolator prevents interference from PC generated noise and enhances studio master-quality degital source playback performance. Both 32 bit and 64 bit PC operat- ing systems are supported for asynchronous USB transmission.
High-precision digital volume attenuator
The D-02 is implemented with a high quality 32 bit digital volume attenuator function, and can be directly connected to a power amplifier.
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.
