TEAC UD-701N
TEAC UD-701N
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TEAC UD-701N
Network DAC/Preamplifier with Discrete Delta Sigma Design
Revolutionary TEAC ΔΣ Discrete DAC
Instead of using a generic DAC IC, the UD-701N incorporates a newly-developed TEAC ΔΣ (Delta Sigma) discrete DAC comprised of discrete circuitry using FPGA with original algorithms. This achieves a wide, perfectly clear sound field that represents TEAC reaching the pinnacle of its sound objectives.
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DSD signals transmitted as-is for ultimate purity
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PCM signals converted to 1-bit or multi-bit (user selectable)
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Supports 22.5MHz DSD and 384kHz/32-bit PCM playback
⚡ Dual Mono Structure
Best-in-class dual mono design throughout with independent left and right toroidal core transformers, preventing channel interference for rich musical expression and dimensional soundstage.
🔄 Fully-Balanced Transmission
Fully balanced transmission at every stage improves signal-to-noise ratio and dynamic range, conveying signals in their purest state without losing the sense of air inherent in high-resolution sources.
🔌 Four Toroidal Transformers
Dedicated transformers for left/right analog, network module, and digital control sections ensure stable, interference-free power delivery. Linear power strengthens the network module for advanced processing.
🎚️ TEAC-QVCS Volume Control
Quad Volume Control System with four independent circuits (L+, L−, R+, R−) and 0.5dB fine adjustment. Shortest possible signal path prevents degradation for pristine audio quality.
Analog Preamplifier with Premium I/O
Functions as both a USB DAC/Network player and high-quality analog preamplifier with comprehensive connectivity:
- Analog Inputs: 2 line inputs via RCA and XLR connectors
- Digital Inputs: 2× Coaxial and 2× Optical
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TEAC-HCLD2 Buffers: Enhanced-current output with diamond buffer amplifiers in dual-circuit structure
Premium Headphone Amplifier
4-pin XLR headphone amplifier switchable between balanced and active ground. Four diamond buffers (L, R, +, −) enable true balanced drive with parallel operation for single-end use. Drives 600Ω high-impedance headphones with authority and finesse.
MQA Full Decoder
Master Quality Authenticated full decoder with 5ms precision waveform control achieves analog waveforms true to original recordings. Greatly reduces "sound blurring" during sudden transients and extreme dynamic shifts.
Supports MQA from files, network streams, and digital inputs—including MQA CD playback when connected to a CD player's digital output.
Network & Streaming Capabilities
Roon Ready
Full RAAT support with high-quality playback, intuitive app control, and multi-room synchronized playback
OpenHome
Smart Home app compatibility with playlist management via TEAC HR Streamer and gapless playback
Streaming Services
Spotify Connect, Tidal, Qobuz (lossless CD-quality), and TuneIn Internet Radio
Bluetooth
LDAC, LHDC, aptX HD (96kHz/24-bit capable), plus AAC, aptX, and SBC codecs
Advanced Technologies
RDOT-NEO Upconversion
Upconvert PCM 2×, 4×, or 8× (384kHz max) using fluency logic interpolation to reproduce frequencies above 20kHz
Bulk Pet USB
Stable data transmission with four preset modes levels processing loads for optimal audio quality
Vibration Control
Floating transformer structure, tuned side fins, and TEAC pinpoint feet suppress resonances
Premium Construction
Minimized circuit board screws and anti-vibration mechanisms throughout for pure signal integrity
Technical Specifications
🎵 DAC Section
TEAC ΔΣ Discrete DAC × 2
2xFs / 4xFs / 8xFs (max 384kHz)
🔌 Analog Audio Inputs
Balanced (XLR)
Unbalanced (RCA)
💾 Digital Audio Inputs
USB
Connector: USB B-type × 1 (USB 2.0 compliant)
PCM Support: 16/24/32-bit | 44.1k–384kHz
DSD Support: 2.8M / 5.6M / 11.2M / 22.5MHz
Coaxial
Connectors: RCA Pin (gold-plated) × 2 pairs
Input Level: 0.5Vp-p | Impedance: 75Ω
PCM Support: 16/24-bit | 32k–192kHz
DSD Support: 2.8MHz (176.4kHz/24bit DoP)
Optical
Connectors: Rectangular (TOS) × 2 pairs
Input Level: –24.0 to –14.5dBm peak
PCM Support: 16/24-bit | 32k–192kHz
DSD Support: 2.8MHz (176.4kHz/24bit DoP)
Ethernet (Network)
Connector: RJ-45 × 1 (1000Base-T)
PCM Support: 16/24/32-bit | 32k–384kHz (Stereo)
DSD Support: 2.8M / 5.6M / 11.2M / 22.5MHz (Stereo)
Formats: FLAC, ALAC, WAV, AIFF, MQA, DSF, DSDIFF, DoP, MP3, AAC
💿 USB Flash Drive
USB A-type × 2 (Front × 1, Rear × 1)
FAT32, exFAT, NTFS (single partition)
16/24/32-bit | 32k–384kHz
2.8M / 5.6M / 11.2M / 22.5MHz
Supported Formats: FLAC, Apple Lossless (ALAC), WAV, AIFF, MQA, DSF, DSDIFF (DFF), DoP, MP3, AAC (m4a)
📡 Bluetooth®
🔊 Analog Audio Outputs
Balanced (XLR)
Connectors: XLR (gold-plated pins) × 1 pair
Output Impedance: 220Ω
Output Levels: Fixed (0dB), Fixed (+6dB), Variable, or Off
Maximum Output:
• 2.0Vrms (Fixed 0dB)
• 4.0Vrms (Fixed +6dB)
• 12Vrms (Variable)
Unbalanced (RCA)
Connectors: RCA Pin (gold-plated) × 1 pair
Output Impedance: 180Ω
Output Levels: Fixed (0dB), Fixed (+6dB), Variable, or Off
Maximum Output:
• 2.0Vrms (Fixed 0dB)
• 4.0Vrms (Fixed +6dB)
• 6.0Vrms (Variable)
🎧 Headphone Outputs
Balanced (4-pin XLR)
Connector: 4-pin XLR × 1
Pin Assignment: Pin1: L+, Pin2: L–, Pin3: R+, Pin4: R–
Max Output Power: 700mW + 700mW (32Ω loaded)
Unbalanced (6.3mm Jack)
Connector: 6.3mm Stereo jack (gold-plated) × 1
Max Output Power: 500mW + 500mW (32Ω loaded)
⚙️ Clock Sync & External Control
Clock Sync Input
12V Trigger
12V, 1mA
12V, 100mA max
📊 Audio Performance
Measurement conditions: 192kHz/24-bit PCM input, RCA output, DAC low-pass filter: On
(+1dB/–5dB)
Distortion
(A-Weight, 1kHz)
⚡ Power & Physical Specifications
AC 120V, 60Hz (US/Canada)
AC 230V, 50Hz (UK/Europe)
40W (Standby: 0.4W)
444 (W) × 111 (H) × 334 (D) mm
(including protrusions)
11.8kg (26 lbs)
🌡️ Operating Conditions
+5°C to +35°C
5% to 85% (no condensation)
–20°C to +55°C
📦 Included Accessories
