Amplifier 擴音機 / TEAC / UD-501
UD-501

DSD 5.6MHz / PCM 384kHz capable Dual Monaural D/A Converter

Introduction

TEAC's new UD-501 is the star of the 501 series. The UD-501 supports Direct Stream Digital (DSD) playback at either 2.8 MHz or 5.6MHz (DXD) rates. PCM audio is supported up to 384kHz/32-bit resolution. It connects to your computer over USB using ASIO 2.1 or DoP.

The output section of the UD-501 features two BurrBrown 32-bit DACs per channel and JRC MUSES op amps, also with a dual monaural design. Both balanced XLR and unbalanced RCA outputs are available to connect to your power amplifier. A toroidal-core power supply ensures top performance and clean transient playback, for quality that outperforms components five times its price.

Specification

DSD 2.8/5.6MHz Native File Playback by ASIO 2.1 or DoP
Both 2.8MHz and 5.6MHz DSD files are processed in native mode to properly convert DSD into an analog signal, and skipping PCM conversion in between.

ASIO2.1 and DoP (DSD over PCM) playback are also supported.
(Mac supports DoP only, with standard driver)

Up to 32bit/384kHz PCM File Playback
With PCM file format, files from 44.1kHz/16-bit to 384kHz/32bit resolution are supported.
Asynchronous Transfer Mode
Transfer timing is controlled by more accurately by ignoring the clock signal from a PC, nearly eliminating clock-noise and allowing digital data to travel un-affected.
Variety of Digital Filter Settings and Preferences
Three types of digital filters are provided for PCM playback, while 4 types of cut-off filters are provided for DSD playback.

Also, shutting down unnecessary circuits – USB circuit when S/PDIF inout is selected, or Line Out circuit when Headphones are connected – for purer audio processing.

Reducing Jitter Noise by 192kHz Up-Converting
With a PCM file sampling at a frequency less than 192kHz, users are able to convert up to 192kHz in order to reduce jitter noise, or keep the original sampling rate to enjoy the original sound.