Key Features
32-bit DAC
At the center of the Anedio D1 is the ES9018 Sabre Reference 32-bit DAC from ESS Technologies. Its oversampling modulator, optimized for accurate reproduction of music, excels at maintaining superb linearity at all levels, tracking fast transients. and resolving lowermost signals. You will be able to hear minute details, accurate rendition of instrumental timbres, and spatial cues from reverberations.
Multi-Stage Jitter Reduction
The D1 DAC incorporates multi-stage jitter reduction circuits to tame jitter as far as possible, well below the threshold of audibility. As the digital signal goes through each stage, the jitter level is progressively reduced until the critical final stage, which is driven by an ultra-low jitter oscillator with 0.5 ps rms jitter. Whether you listen to music through USB or SPDIF, the multi-stage jitter reduction is highly effective, delivering consistently natural, musical, and relaxed sound. Read "Multi-Stage Jitter Reduction"
Bit-Accurate Jitter Reduction
Conventional jitter reduction schemes modify every sample based on a constantly-changing estimate of the input sample rate, inevitably introducing audible artifacts. By contrast, the Anedio D1 preserves the original samples in their pristine condition through the jitter reduction stages. Only at the final stage of the ES9018 DAC, time-domain interpolation is performed at a much higher frequency, which suppresses interpolation errors to below -175 dB.
Built-in Volume Control
The built-in volume control allows power amplifiers to be connected directly to the D1 DAC, eliminating the preamp in the signal path when playing from a digital source. Bypassing the preamp is one of the most significant steps toward a higher level of transparency. To ensure highest signal-to-noise ratios at realistic listening levels, our design uses an optimal combination of 32-bit digital attenuators and thin-film resistor dividers.
Plug-and-Play USB Input
The D1 DAC is a plug-and-play USB device. There is no need to install a USB driver. Simply plug the USB input of the DAC into the USB port of a computer, and you can enjoy listening to music immediately. Moreover, the USB input of the D1 DAC is bit-transparent, meaning it passes on the original samples completely intact without any modifications. You will be surprised to hear such refined, natural, and musical sound from a USB interface.
High-Performance Headphone Amplifier
Equipped with a high-current buffer, the headphone amplifier can drive just about any headphones easily and accurately. Our ultra-linear design achieves lower than 0.0004% THD+N and 0.00003% IMD2 (19K+20KHz) driving 60 ohm loads. Its low-impedance output guarantees that the distortion will be kept absolutely minimal regardless of the nonlinearity of the headphone impedance.
IR Remote Control
The D1 DAC comes with a Sony universal IR remote control for setting the volume level and channel. With extra large buttons and comfortable ergonomic design, the IR remote is simple and easy to use. As with most people, we do not like to pile up remote controls in our living rooms. In case you want to use another universal remote to control the Anedio D1 DAC, we've made it easy to do so by using a common IR protocol that is readily recognized by most universal remote controls.
Ground Isolation
The four digital inputs (USB, SPDIF 75-ohm BNC, RCA, and optical) are completely isolated from the DAC ground to ensure that the noise from other digital sources does not propagate into the DAC ground. Ultra-high-frequency digital transformers used in the D1 DAC excel not only at isolating the grounds, but also at rejecting the common-mode noise from digital sources, thereby minimizing jitter that arises from the interface.
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Channel Separation
Through extensive optimization of the PCB layout and judicious use of separate voltage regulators, the D1 DAC achieves near perfect channel separation, -130dB at 1KHz and -125dB at 20KHz. With good recordings, the sense of space can really blossom, and the music becomes more alive with the clarity of focus, the stability of imaging, and the depth and width of soundstage.
Premium-Quality Components
Every part of the D1 DAC is touched by our joy of building a quality product. You will find premium-quality components used abundantly throughout the D1 DAC -- 4-layer PCBs, ultra-high-frequency digital transformers, gold-plated connectors, toroidal power transformers with magnetic shields, low-noise voltage regulators, fast-settling op amps, 0.5% precision film resistors, polypropylene capacitors, and high-reliability supply capacitors.
Solid Non-Ferromagnetic Chassis
All of this is packaged in a non-ferromagnetic enclosure for enhanced immunity to electromagnetic interference and high-frequency noise, which contributes to an extremely low noise floor. The body is built from 0.15 inch thick extruded aluminum, forming a mechanically rigid structure and making the DAC impervious to acoustically-induced vibrations.