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The silver UD-301-S Dual Monaural USB Audio Digital-to-Analog Converter from Teac features USB input, which allows DSD native playback. Thanks to support for asynchronous transmission over USB, this digital-to-converter eliminates jitter and transmits clean digital audio signal.
Each of the device's left and right channels has its own single monaural circuit. This prevents mutual interference between the left and right channels and enables pure stereo playback. In addition, each channel employs one MUSES8920 Operational Amplifier and one BurrBrown 1795 DAC for true dual monaural operation. The BurrBrown PCM1795 DAC is capable of 32-bit processing, which enables processing 5.6MHz DSD data in large quantities.
The UD-301-B Digital-to-Analog Converter doubles as a high-performance headphone amplifier. The 100mW + 100mW output headphone amplifier uses Coupling Capacitor-Less Circuit (CCLC) technology that provides a responsive headphone listening environment with great spatiality. Featuring XLR balanced output, this digital-to-analog converter offers a high degree of interoperability with devices ranging from those used by audiophiles all the way up to those used by professionals.
5.6 MHz DSD Native Playback
USB input allows DSD native playback that converts 5.6 MHz DSD data directly into analog signals without needing to first convert them to PCM
Supports both the ASIO2.1 and DoP (DSD over PCM) conversion methods
Using the AI-301DA Digital-To-Analog Converter in conjunction with the high-resolution playback PC application, TEAC HR audio player (downloadable for free from the TEAC website), the user can access high-resolution digital audio, including 5.6 MHz DSD or 32-bit / 192 kHz PCM files, without having to deal with complex settings
Asynchronous Mode-Capable USB Input
When receiving digital audio signals from a computer via a USB cable, the device can operate in asynchronous mode — the timing of the input signal is controlled by the device's internal clock
With asynchronous transmission over USB, signal-compromising jitter is effectively eliminated, allowing transmission of clean digital audio signal
Up to 192 kHz Up-Conversion Option
When handling digital signals up to 96 kHz, the user has the option to up-convert to double or quadruple the original signal sampling frequency
When playing back a 44.1 kHz sound source (equivalent to CD sound quality) a smoother analog audio signal can be obtained in order to convert to a higher resolution digital signal
Up-conversion can be enabled/disabled by the user
Dual Monaural Design
Each of the left and right channels has its own single monaural circuit
Prevents mutual interference between the left and right channels and enables pure stereo playback
MUSE Operational Amplifier
One MUSES8920 operational amplifier unit is used for each channel (left and right)
MUSES8920 operational amplifier unit is designed for hi-fi audio and made by New Japan Radio
BurrBrown PCM1795 DAC
Internal BurrBrown 1795 digital-to-analog converters for each channel (left and right) for true dual monaural operation
Digital-to-analog converters are capable of 32-bit processing, and are hence able to process 5.6MHz DSD data in large quantities
Accurate playback of high-resolution sound sources
Dual Monaural Headphone Amplifiers Used in the CCLC Circuits