TEAC UD-507 USB DAC / Headphone Amplifier / Preamplifier

The TEAC UD-507 USB DAC / Headphone Amplifier / Preamplifier is a reference-grade digital audio component that combines exceptional sound quality with remarkable versatility. Built around TEAC's proprietary TRDD 5 discrete DAC, a fully balanced dual-mono architecture, and the advanced TEAC-HCLD2 headphone amplifier, the UD-507 delivers extraordinary clarity, musicality, and precision. Whether serving as the centerpiece of a high-end headphone setup, a premium USB DAC, or the control hub for a two-channel Hi-Fi system, the UD-507 is engineered to reveal every nuance of your music.

Key Features

TEAC TRDD 5 Discrete DAC

Instead of relying on a conventional DAC chip, the UD-507 features TEAC's in-house TRDD 5 (TEAC Reference Discrete DAC) architecture. Designed with carefully selected discrete components, it delivers a natural, highly detailed sound with exceptional dynamics, accurate imaging, and outstanding musical realism. Support for PCM up to 384kHz/32-bit and native DSD 22.5MHz ensures compatibility with today's highest-resolution audio formats.

TEAC-QVCS Precision Volume Control

TEAC's Quad Volume Control System (QVCS) independently controls the left, right, positive, and negative channels using a precision analog attenuator. This innovative design preserves channel balance while minimizing signal degradation, providing exceptionally transparent volume control when using the UD-507 as a preamplifier.

TEAC-HCLD2 Balanced Headphone Amplifier

Designed for demanding headphone enthusiasts, the UD-507 incorporates TEAC's High Current Line Driver 2 (HCLD2) technology to deliver outstanding power, control, and low distortion. Multiple balanced and single-ended headphone outputs provide excellent compatibility with a wide range of headphones, from sensitive in-ear monitors to high-impedance reference models.

RDOT-NEO Digital Upsampling

TEAC's proprietary RDOT-NEO (Refined Digital Output Technology) intelligently upsamples PCM audio to produce smoother waveforms and improved musical detail. The result is a more natural, engaging listening experience while preserving the integrity of the original recording.

Fully Balanced Dual-Mono Design

Separate left and right signal paths minimize crosstalk and interference, improving stereo imaging, channel separation, and overall transparency. This dual-mono architecture helps create a wider, more realistic soundstage with exceptional precision.

High-Performance Stereo Preamplifier

With balanced XLR and RCA outputs, the UD-507 functions as a premium analog preamplifier for high-end power amplifiers. Combined with the TEAC-QVCS analog volume control, it delivers accurate signal management while maintaining exceptional sonic purity.

Extensive Connectivity

The UD-507 offers comprehensive connectivity for both digital and analog sources, including USB-B, USB-C, coaxial, optical, Bluetooth®, balanced XLR, and RCA connections. A dedicated 10MHz external clock input allows integration with a master clock for even greater timing accuracy in reference-grade audio systems.

Premium Engineering & Build Quality

Housed in TEAC's beautifully crafted Reference 500 Series aluminum chassis, the UD-507 incorporates vibration-resistant construction, upgraded Stressless isolation feet, and premium internal components to preserve signal integrity and long-term reliability.

RockOnAV Expert Insight

The UD-507 stands apart from conventional DACs by combining TEAC's proprietary technologies with true audiophile engineering. The TRDD 5 discrete DAC, TEAC-QVCS analog volume control, RDOT-NEO upsampling, and TEAC-HCLD2 headphone amplifier work together to create a remarkably transparent and natural listening experience. Whether paired with the TEAC AP-507, AP-701, or another premium power amplifier, the UD-507 serves as a true reference-quality digital front end capable of anchoring an exceptional two-channel or headphone system.