TEAC UD-701N
With a newly-developed original discrete DAC, this advanced all-around unit fascinates every audiophile as the core of an audio system.
With USB DAC functions as the foundation, a network player, an analog preamp, a headphone amplifier and various other functions have been combined at a high level. This TEAC flagship with a newly-developed TEAC ΔΣ (Delta Sigma) discrete DAC has achieved a new level.
As a USB DAC and network player, 22.5MHz DSD and 384kHz/32-bit PCM are supported. Using the newly-developed TEAC ΔΣ discrete DAC, all digital signals are converted to analog signals with high audio quality.
Not only can this be used for all kinds of digital playback, from systems centered on a PC or Mac to audio server systems using NAS and streaming playback, it can also fulfill a core role in systems as a preamp with analog and digital inputs. The UD-701N is an all-around unit that flexibly supports new listening styles in a new age. Along with allowing listening through speakers in combination with a power amplifier, it also supports balanced headphone output using a 4-pin XLR jack.
Dual mono structure
We have incorporated an extravagant dual mono structure throughout the unit, from the power circuit with independent left and right toroidal core transformers to the D/A converter section and analog output stage. This dual model structure, which has complete mono circuits for each of the two channels, prevents interference between the left and right channels, enabling the realization of rich musical expression that reproduces the sense of space and dimension.Fully-balanced transmission at every stage
The fully balanced transmission of both the left and right analog output signals from after D/A conversion through the final output stage contributes greatly to improving the signal-to-noise ratio and increasing the dynamic range. This conveys signals in a purer state without losing the sense of air that high-resolution audio sources have.Four high-capacity toroidal core transformers
In addition to the 2 toroidal core transformers for the independent left and right analog signals, separate toroidal core transformers are also used in both the network module and digital control sections. In particular, stable electricity is supplied to the network module, which requires advanced processing, by strengthening the power supply for the network module section with linear power.Analog preamplifier function with 2 line inputs via RCA/XLR and 4 digital inputs
Not only as a USB DAC/Network player that employs two sets of coaxial and optical digital inputs, the UD-701N also works as a high-quality analog preamplifier by employing additional analog audio inputs via RCA and XLR connectors that allow users to connect conventional audio sources.Our TEAC-QVCS (Quad Volume Control System) is a variable gain amp volume control with four independent circuits for left, right, positive and negative (L+, L−, R+ and R−). Placing this in the audio signal route makes it as short as possible, preventing the degradation of audio signals caused by drawing them through signal lines. Moreover, since the volume can be adjusted in extremely fine 0.5dB intervals, you can achieve the ideal volume for the audio system or headphones that you are using.
Features at a glance
- Newly-developed TEAC ΔΣ (Delta Sigma) discrete DAC
- Dual mono, fully-balanced circuit structure realizes outstanding channel separation
- Playback of 22.5MHz DSD and 384kHz/32-bit PCM is possible as a USB DAC and network player
- Preamp function with four digital inputs and two pairs of RCA/XLR line inputs
- 4-pin XLR headphone amplifier that can be switched between balanced and active ground
- MQA full decoder function that also supports digital inputs of CD Player
- Upconversion to 2/4/8× sampling frequencies using RDOT-NEO
- Bluetooth® receiver supports LDAC, aptX™ HD, and other high-resolution codecs
- Conforms to OpenHome standards and supports Roon Ready
- Supports Spotify Connect, Tidal Connect, Qobuz, and TuneIn (Internet Radio)
- Unique TEAC-HCLD2 enhanced-current output buffer circuits
- Analog preamp circuits with high resolution using TEAC-QVCS
SPECIFICATIONS
| DAC section | |
| DAC | TEAC ΔΣ Discrete DAC × 2 |
| Upconvert | 2xFs / 4xFs / 8xFs (maximum 384kHz) |
Analog audio inputs | |
| Balanced | |
| Connectors | XLR × 1 pair |
| Input impedance | 50kΩ |
| Maximum input level | 5Vrms |
| Unbalanced | |
| Connectors | RCA Pin (gold-plated) × 1 pair |
| Input impedance | 25kΩ |
| Maximum input level | 2.5Vrms |
Digital audio inputs | |
| USB | |
| Connectors | USB B-type × 1, (USB2.0 compliant) |
| Supported formats | |
| PCM | 16 / 24 / 32bit 44.1k / 48k / 88.2k / 96k / 176.4k / 192k / 352.8k / 384kHz |
| DSD | 2.8M / 5.6M / 11.2M / 22.5MHz |
| Coaxial | |
| Connectors | RCA Pin (god-plated) × 2 pairs |
| Input level | 0.5Vp-p |
| Input impedance | 75Ω |
| Supported formats | |
| PCM | 16 / 24bit 32k / 44.1k / 48k / 88.2k / 96k / 176.4k / 192kHz |
| DSD | 2.8MHz (176.4kHz/24bit DoP format) |
| Optical | |
| Connectors | Rectangular (TOS) × 2 pairs |
| Input level | –24.0 to –14.5dBm peak |
| Supported formats | |
| PCM | 16 / 24bit 32k / 44.1k / 48k / 88.2k / 96k / 176.4k / 192kHz |
| DSD | 2.8MHz (176.4kHz/24bit DoP format) |
| ETHERNET | |
| Connector | RJ-45 × 1 (1000Base-T) |
| Supported formats | |
| PCM | 16 / 24 / 32bit 32k / 44.1k / 48k / 88.2k / 96k / 176.4k / 192kHz / 352.8k / 384kHz (Stereo) |
| DSD | 2.8M / 5.6M / 11.2M / 22.5MHz (Stereo) |
| Supported formats | |
| PCM lossless | FLAC, Apple Lossless (ALAC), WAV, AIFF, MQA |
| DSD lossless | DSF, DSDIFF (DFF), DoP |
| Compressed audio | MP3, AAC (m4a container) |
| USB flash drive | |
| Connectors | USB A-type × 2 (Front × 1, Rear × 1, USB2.0 compliant) |
| Supported file system | FAT32, exFAT and NTFS single partation |
| Supported file format | |
| PCM | 16 / 24 / 32bit 32k / 44.1k / 48k / 88.2k / 96k / 176.4k / 192kHz / 352.8k / 384kHz (Stereo) |
| DSD | 2.8M / 5.6M / 11.2M / 22.5MHz (Stereo) |
| Supported file formats | |
| PCM lossless | FLAC, Apple Lossless (ALAC), WAV, AIFF, MQA |
| DSD lossless | DSF, DSDIFF (DFF), DoP |
| Compressed audio | MP3, AAC (m4a container) |
| Bluetooth® | |
| Bluetooth® version | 4.2 |
| Output class | Class2 (rrange: 10m) |
| Supported profile | A2DP, AVRCP |
| Supported A2DP codec | LDAC, LHDC, AAC, SBC, Qualcomm®aptX™ audio/HD audio |
| A2DP content protection | SCMS-T |
| Number of saved pairings | Maximum 8 |
Analog audio outputs | |
| Balanced | |
| Connectors | XLR (gold-plated pins) × 1 pair |
| Output impedance | 220Ω |
| Output level settings | Selectable from Fixed (0dB), Fixed (+6dB), Variable, or Off |
| Maximum output level | 2.0Vrms (1kHz, Full-scale, 10kΩ loaded, FIxed at 0dB) 4.0Vrms (1kHz, Full-scale, 10kΩ loaded, FIxed at +6dB) 12Vrms (1kHz, Full-scale, 10kΩ loaded, Variable) |
| Unbalanced | |
| Connectors | RCA Pin (gold-plated) × 1 pair |
| Output impedance | 180Ω |
| Output level settings | Selectable from Fixed (0dB), Fixed (+6dB), Variable, or Off |
| Maximum output level | 2.0Vrms (1kHz, Full-scale, 10kΩ loaded, FIxed at 0dB) 4.0Vrms (1kHz, Full-scale, 10kΩ laoded, Fixed at +6dB) 6.0Vrms (1kHz, Full-scale, 10kΩ loaded, Variable) |
Headphone outputs | |
| Balanced | |
| Connector | 4-pin XLR × 1 |
| Pin asign | Pin1: L+, Pin2: L–, Pin3: R+, Pin4: R– |
| Unbalanced | |
| Connector | 6.3mm Stereo jack (gold-plate) × 1 |
| Maximum output power | |
| Balanced | 700mW + 700mW (32Ω loaded) |
| Unbalanced | 500mW + 500mW (32Ω × 1 loaded) |
| Supported impedance | 16 to 600Ω |
Clock sync input | |
| Connector | BNC (gold-plated) × 1 |
| Input frequency | 10MHz |
| Input impedance | 50Ω |
| Input level | |
| Rectangle wave | Equivalent to TTL |
| Sine wave | 0.5 to 1.0Vrms |
External control | |
| Trigger Input (12V TRIGGER IN) | |
| Connector | 3.5mm Mono mini jack × 1 |
| Input level | 12V, 1mA |
| Trigger output (12V TRIGGER THRU) | |
| Connector | 3.5mm Mono mini jack × 1 |
| Output level | 12V |
| Maximum current supply | 100mA |
| Audio performance | *Measurement conditions: Input signal: 192kHz/24-bit PCM, Measurement output: RCA, DAC low-pass filter: On |
| Frequency response | 5Hz to 80,000Hz (+1dB/–5dB) |
| Total harmonic distortion | 0.002% |
| S/N ratio | 108dB (A-Weight, 1kHz) |
Power | |
| AC120V, 60Hz | |
| AC220 - 240V, 50/60Hz | |
| Power consumption | 40W |
| Standby power | 0.4W |
Overall dimensions | 444 (W) × 111 (H) × 334 (D) mm (including protrusions) |
| Weight | 11.8kg |
| Operating Temperature | ＋5℃ to ＋35℃ |
| Operating Humidity Range | 5% to 85% (no condensation) |
| Storage Temperature Range | –20℃ to ＋55℃ |
| Included accessory | Power cord, Remote control (RC-1330), AAA batteries × 2, Owner's manual, Foot pad x 3 |