TEAC UD-701N Network Audio Player USB DAC / Network Player
Flagship network audio player, preamplifier, and USB DAC • TEAC ΔΣ (Delta-Sigma) discrete DAC architecture • Dual-monaural, fully balanced circuit layout • TEAC-QVCS high-precision analog volume control • TEAC-HCLD2 high-current line driver buffers • 4-pin XLR balanced headphone amplifier • 10 MHz external master clock input • OpenHome, Roon Ready, Spotify Connect, and Tidal HiFi streaming
The TEAC UD-701N Network Audio Player USB DAC / Network Player anchors the brand’s flagship 700 Series, synthesizing reference-grade digital-to-analog conversion, high-resolution network streaming, an analog preamplifier, and a fully balanced headphone amplifier within a single chassis. Centered around the proprietary TEAC ΔΣ (Delta-Sigma) discrete DAC—engineered with in-house discrete resistor networks and algorithms derived from sister-brand Esoteric—the UD-701N bypasses standard off-the-shelf integrated DAC chips to reveal acoustic nuance and dynamic breadth. Featuring a true dual-monaural architecture powered by four high-capacity toroidal core transformers, high-current TEAC-HCLD2 output buffers, and an electronically controlled TEAC-QVCS analog volume ladder, it serves with equal authority as an audiophile headphone hub, standalone digital source, or digital/analog control preamplifier.
Key Features & Innovations
TEAC ΔΣ (Delta-Sigma) discrete DAC — in-house developed discrete conversion circuitry utilizes an FPGA running custom algorithms with matched discrete resistor arrays, supporting native playback of DSD up to 22.5 MHz and PCM up to 384 kHz/32-bit.
Dual-monaural, fully balanced architecture — complete physical and electrical isolation between left and right channels from digital conversion through the analog output stages prevents crosstalk and maximizes channel separation.
Four toroidal core power transformers — independent oversized toroidal transformers are dedicated to the left analog channel, right analog channel, digital processing circuitry, and network module to eliminate mutual electrical interference.
TEAC-QVCS analog volume control preamplifier — Quad Volume Control System employs four variable-gain amplifier networks (Left/Right, Positive/Negative) in 0.5 dB increments, maintaining signal-to-noise ratio and channel balance even at whisper-quiet levels.
TEAC-HCLD2 high-current line drivers — enhanced High-Current Line Driver circuits ensure instantaneous current delivery, driving long cable runs and downstream power amplifiers with dynamic transient control.
Balanced 4-pin XLR and 6.3 mm headphone amplification — discrete diamond-buffer headphone stage provides dedicated balanced drive (via front-panel 4-pin XLR) and active-ground drive across standard 1/4" terminations to power demanding planar and high-impedance dynamic headphones.
Comprehensive high-resolution network streaming — OpenHome and DLNA compliant, Roon Ready, Spotify Connect, and Tidal HiFi integration, complemented by full hardware MQA decoding across network, USB, and digital inputs.
10 MHz master clock synchronization — rear-panel 50-ohm BNC input allows synchronization with external 10 MHz reference master clock generators (such as the TEAC CG-10M) for jitter-free clock accuracy.
FAQ — TEAC UD-701N Network Audio Player / USB DAC
Can the TEAC UD-701N be used directly with a power amplifier without a separate preamp?
Yes. The TEAC UD-701N includes a reference-grade analog preamplifier section utilizing the TEAC-QVCS four-circuit resistor ladder volume control. Its analog RCA and balanced XLR line outputs can be set to variable output mode, allowing you to connect directly to active speakers or a stereo power amplifier (such as the TEAC AP-701).
How does the TEAC ΔΣ discrete DAC differ from conventional DAC chips?
Rather than relying on standardized commercial delta-sigma DAC chips from third-party manufacturers, TEAC engineered a fully discrete conversion stage based on technology shared with their high-end Esoteric division. An FPGA chip runs proprietary discrete algorithms that feed discrete resistor ladders, resulting in a more organic, uncompressed analog soundstage and natural micro-dynamic expression.
Does the UD-701N feature analog inputs for legacy sources?
Yes. In addition to its USB, network, optical, and coaxial digital inputs, the UD-701N features two sets of analog audio line inputs (one balanced stereo XLR pair and one unbalanced stereo RCA pair), allowing you to route analog sources such as phono preamplifiers or tuners through its preamplifier section.
What are the benefits of the front-panel 4-pin XLR headphone output?
The 4-pin XLR output provides a fully balanced drive where the left and right channels maintain separate positive and negative signal paths all the way to the headphone transducers. This eliminates shared ground return crosstalk, dramatically improves signal-to-noise ratio, and doubles the available voltage swing to easily drive demanding audiophile headphones.
Why Buy From Us
Authorized TEAC reference dealer offering 100% genuine factory-sealed components with full manufacturer warranty
Expert technical assistance on network audio configuration, external clock synchronization, and balanced system matching
Dedicated concierge customer service for high-end digital audio and desktop headphone listening setups
Fast, secure insured freight shipping with protective packaging on every order
Related & System Matches
TEAC AP-701 Stereo / Bi-Amp / Bridgeable Power Amplifier
TEAC CG-10M 10 MHz Master Clock Generator
TEAC PD-505T Dedicated CD Transport
Audio-Technica ATH-ADX3000 and ATH-WP900 Audiophile Headphones
