TEAC UD-701N USB DAC/Network Player Instruction Manual

1. Introduction

This manual provides essential information for the proper setup, operation, and maintenance of your TEAC UD-701N USB DAC/Network Player. Please read this manual thoroughly before using the product to ensure optimal performance and safety. The UD-701N is designed to be a high-performance audio component, serving as the core of your audio system with its advanced digital-to-analog conversion and network streaming capabilities.

2. Product Features

The TEAC UD-701N incorporates several advanced features for superior audio reproduction:

• Dual Mono Structure: Designed to prevent interference between the left and right audio channels, facilitating rich musical expression.
• Analog Preamplifier Function: Includes 2 line inputs via RCA/XLR and 4 digital inputs for versatile connectivity.
• 4-pin XLR Headphone Amplifier: Offers switchable balanced and active ground modes for high-quality headphone listening.
• MQA Full Decoder: Supports MQA audio playback, including digital inputs.
• Bluetooth Receiver: Compatible with high-resolution transmission formats such as LDAC and aptX HD.
• Roon Ready & OpenHome: Supports advanced network audio protocols for seamless integration into existing audio ecosystems.

3. Setup and Connections

3.1 Front Panel Overview

The front panel provides access to essential controls and connections for daily operation.

Image 3.1.1: Front view of the TEAC UD-701N. This image displays the power button, standby indicator, balanced and unbalanced headphone outputs, source selector, menu button, output selector, USB-A port, and volume knob. The display shows current input and audio format.

• Power/Standby Button: Controls the main power and standby mode.
• Headphone Outputs: Includes a 4-pin XLR balanced output and a standard 1/4-inch (6.3mm) unbalanced output.
• Source Selector: Rotary knob to select the desired input source.
• Volume Knob: Adjusts the output volume.
• USB-A Port: For connecting USB storage devices.
• Display: Shows current input, sample rate, and other operational information.

3.2 Rear Panel Connections

The rear panel houses all primary input and output connections for integrating the UD-701N into your audio system.

Image 3.2.1: Rear view of the TEAC UD-701N. This image details the comprehensive array of connections including XLR and RCA line inputs and outputs, Ethernet port, USB-B port for PC connection, USB-A port for USB drive, coaxial and optical digital inputs, 10MHz clock input, and the AC power inlet.

• Analog Inputs:
  • XLR Line In (L/R): Balanced analog audio input.
  • RCA Line In (L/R): Unbalanced analog audio input.
• Digital Inputs:
  • USB-B: For connecting to a computer (PC/Mac).
  • Coaxial Digital In (x2): For digital audio sources.
  • Optical Digital In (x2): For digital audio sources.
  • Ethernet: For network connection.
• Analog Outputs:
  • XLR Line Out (L/R): Balanced analog audio output.
  • RCA Line Out (L/R): Unbalanced analog audio output.
• Other Connections:
  • USB Drive (5V 0.5A): For connecting external USB storage.
  • 10MHz Clock Input: For external clock synchronization.
  • RS-232C: For control system integration.
  • 12V Trigger: For synchronized power control with other components.
  • AC Inlet: For power connection.

Image 3.2.2: Detail of the headphone outputs. This close-up shows the 4-pin XLR balanced headphone jack and the 1/4-inch unbalanced headphone jack, labeled "BALANCED" and "UNBALANCED" respectively.

4. Operating Instructions

4.1 Power On/Off

Press the Power/Standby button on the front panel to turn the unit on or put it into standby mode. Ensure all connections are secure before powering on.

4.2 Source Selection

Rotate the Source selector knob on the front panel to choose between connected input sources (e.g., USB, Coaxial, Optical, Line In, Network).

4.3 Volume Control

Adjust the Volume knob on the front panel to set the desired output level for connected amplifiers or headphones.

4.4 Headphone Amplifier Usage

Connect your headphones to either the 4-pin XLR balanced output or the 1/4-inch unbalanced output. The UD-701N allows switching between balanced and active ground modes for the XLR output, offering flexibility for various headphone types and listening preferences. Refer to the on-screen menu for specific settings.

4.5 Network Playback and Bluetooth

Connect the UD-701N to your home network via the Ethernet port for network streaming features. The unit supports Roon Ready and OpenHome protocols for seamless integration with compatible network audio systems.

Image 4.5.1: Logos indicating compatibility with OpenHome and Roon Ready network audio platforms.

For wireless audio streaming from mobile devices, activate the Bluetooth function. The UD-701N supports high-quality codecs such as LDAC and aptX HD for superior Bluetooth audio performance.

Image 4.5.2: Diagram showing a mobile device wirelessly connected to the UD-701N via Bluetooth, highlighting support for LDAC, LHDC, and Qualcomm aptX HD codecs.

5. Maintenance

To ensure the longevity and optimal performance of your TEAC UD-701N, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to wipe the exterior of the unit. Avoid using abrasive cleaners, solvents, or chemical sprays, as these can damage the finish.
• Ventilation: Ensure adequate ventilation around the unit. Do not block ventilation openings. Avoid placing the unit in enclosed spaces or on soft surfaces that may impede airflow.
• Placement: Place the unit on a stable, level surface away from direct sunlight, heat sources, excessive dust, moisture, and strong electromagnetic fields.
• Power Cord: Regularly check the power cord for any damage. If damaged, replace it immediately with an authorized replacement.
• Firmware Updates: Periodically check the official TEAC website for firmware updates to ensure your unit has the latest features and performance enhancements.

Image 5.1.1: Detail of the unit's anti-vibration foot, designed to minimize external interference and improve sound quality.

6. Troubleshooting

If you encounter issues with your TEAC UD-701N, please refer to the following common troubleshooting steps. If the problem persists, contact TEAC customer support or your authorized dealer.

• No Power:
  • Ensure the power cord is securely connected to both the unit and a working power outlet.
  • Check if the power outlet is functional.
• No Sound Output:
  • Verify that the correct input source is selected.
  • Check all audio cable connections (RCA, XLR, USB, Optical, Coaxial) are secure.
  • Ensure the volume is not set to minimum or muted.
  • If using headphones, confirm they are properly connected and the headphone volume is adjusted.
  • If using network playback, check network connectivity and streaming application settings.
• Distorted Sound:
  • Check cable connections for damage or loose contacts.
  • Ensure the audio source is not distorted.
  • Verify that the sample rate and format settings are compatible with the source.
• Network Connection Issues:
  • Ensure the Ethernet cable is properly connected to a working router/switch.
  • Restart your router and the UD-701N.
  • Check network settings on the UD-701N and ensure it has a valid IP address.
• Bluetooth Pairing Issues:
  • Ensure the UD-701N is in Bluetooth pairing mode.
  • Delete previous pairings on your mobile device and try pairing again.
  • Ensure your mobile device is within range.

7. Specifications

8. Warranty and Support

For detailed warranty information and customer support, please refer to the official TEAC website or the warranty card included with your product. Do not attempt to service the unit yourself, as this may void your warranty. For technical assistance, contact an authorized TEAC service center or your dealer.

Online Resources: For the latest information, drivers, and firmware updates, visit the official TEAC website.