Topping E30II Digital to Analog Audio Converter User Manual

1. Introduction

The Topping E30II is a high-performance Digital-to-Analog Converter (DAC) designed to enhance your audio experience. It features dual AK4493S decoding chips, offering superior sound quality with improved SINAD, SNR, and dynamic range. This device supports various inputs including USB, coaxial, and optical, making it versatile for different audio setups. The E30II can function as both a DAC and a preamplifier, providing flexible control over your audio system.

Key features include:

• Dual AK4493S decoding chips for enhanced audio performance.
• Plug-and-play USB input supporting up to 32bit/768kHz PCM and DSD512.
• Optical and coaxial inputs supporting 24bit/192kHz audio.
• Discrete LNRD circuit for ultra-low noise reference level.
• Pure DAC application mode for direct DSD performance.
• Digital volume control and LED screen.
• Automatic on/off function.

2. What's in the Box

Upon unboxing your Topping E30II, please ensure all the following items are present:

• 1 x Topping E30II Digital to Analog Audio Converter
• 1 x DC Power Cable
• 1 x USB Cable
• 1 x User Manual
• 1 x Topping Card (Warranty Card)
• 1 x Remote Control

3. Product Overview

3.1 Front Panel

The front panel features an LED screen for displaying information, a remote control receiver, and a multifunction touch button for basic operations.

3.2 Rear Panel

The rear panel provides all the necessary input and output connections for the device.

Image: Diagram showing the front and rear panels of the Topping E30II. The front panel includes an LED screen, remote control receiver, and a multifunction touch button. The rear panel features Right RCA output (4), Left RCA output (5), Coaxial SPDIF input (6), Optical SPDIF input (7), USB input (8), and Power input (DC5V/1A) (9).

4. Setup

4.1 Power Connection

The E30II uses a DC5V power supply, allowing for flexible power options from a PC USB port, mobile phone charger, or power bank. A built-in protection circuit safeguards the device from incorrect power supply connections.

Image: The Topping E30II connected to a 5V power supply, illustrating its portable and versatile power options.

4.2 Input Connections

Connect your audio source to the E30II using the appropriate input cable (USB, Optical, or Coaxial).

• USB Input: Connect your PC or other compatible device using a USB cable. For Windows ASIO applications, driver installation may be required.
• Optical/Coaxial Input: Connect digital audio sources like digital turntables, disk players, set-top boxes, or game consoles.

Image: The Topping E30II connected to a PC via USB, demonstrating its plug-and-play capability for high-fidelity audio from a computer source.

4.3 Output Connections

Connect the E30II to your amplifier or active speakers using RCA cables. The E30II provides Left (L ch) and Right (R ch) RCA outputs.

5. Operating Instructions

5.1 Power On/Off and Standby

The E30II features an automatic on/off function. If no valid signal is detected for 1 minute, the device will automatically turn off. To exit standby mode, short press the multifunction touch button on the front panel.

Image: The Topping E30II display showing its auto on/off function, which automatically powers down the device after 1 minute of no valid signal.

5.2 Input Selection

Short press the multifunction touch button on the front panel to cycle through the input modes: USB, Optical, and Coaxial. The selected input will be displayed on the LED screen.

5.3 Volume Control (Preamplifier Mode)

The E30II has a built-in volume control function that can adjust the volume from -99dB to 0dB. This can be controlled using the included remote control. In DAC mode, the volume is fixed at maximum output and is not adjustable.

5.4 DAC Filter Modes

The E30II offers 6 filter modes for PCM decoding and 2 filter modes for DSD decoding. These settings allow for subtle adjustments to the sound characteristics. Refer to the detailed user manual for specific filter descriptions and how to select them via the remote control.

Image: Close-up of the Topping E30II's circuit board, highlighting the dual AK4493S DAC chips responsible for high-resolution audio processing and various filter modes.

6. Maintenance

• Keep the device clean by wiping it with a soft, dry cloth.
• Avoid exposing the device to extreme temperatures, humidity, or direct sunlight.
• Do not attempt to open or repair the device yourself, as this will void the warranty.
• Ensure proper ventilation around the device to prevent overheating.

7. Troubleshooting

If you encounter any issues with your Topping E30II, please refer to the following common troubleshooting steps:

7.1 Device Cannot Be Turned On

• Check the power connection.
• Try using another DC5V power adapter.
• Try using another power cable.

7.2 No Sound Output

• Ensure the device is powered on.
• Verify that the proper input source is selected by pressing the touch button on the front panel.
• Check all cable connections, ensuring they are fully inserted.
• Check the volume level on all connected devices and ensure they are not muted.
• If using USB IN, ensure the volume on your PC, music player, and driver is not too low. Select the E30II as the default output device.

7.3 Noisy Playback

• Try different audio tracks.
• Ensure the specifications of the songs are supported by the E30II.
• If noise occurs only with DSD files, adjust computer system volume, music player volume, and driver volume to maximum.
• Check for interference from the source or cables. Consider using a USB isolation device.

7.4 Remote Control Not Responding

• Enable remote control function in the setup menu (refer to the full user manual for detailed steps).
• Insert two fresh AAA batteries into the remote.
• Aim the remote directly at the remote control receiver on the E30II.
• Bring the remote closer to the device.
• Use your phone's camera to check if the IR transmitter at the top of the remote blinks when a button is pressed. If not, the remote may be defective.
• If you own multiple Topping devices, ensure you are using the correct remote control.

7.5 Error Messages

• DFU: If accidentally in DFU mode, unplug and re-plug the power cable and reboot. Try to re-flash firmware if DFU persists.
• d-3 (DAC abnormal): Flash the latest firmware. Try another DC5V power supply. Disconnect other devices and reboot. If the problem persists, the unit may be defective. Contact the store where purchased.
• INH Err (Supply voltage too high): Use DC5V power supply.
• INL Err (Supply voltage too low): Use DC5V power supply.
• PN Err (Negative and positive voltage abnormal): Try another DC5V power supply. Disconnect other devices and reboot. If the problem persists, the unit may be defective. Contact the store where purchased.

8. Specifications

Note: The above data is the result of testing by the TOPPING laboratory.

9. Warranty and Support

Your Topping E30II comes with a warranty card included in the packaging. Please refer to the warranty card for details regarding coverage and terms.

For any further questions, technical assistance, or support, please contact the Aoshida after-sales service team. You can typically find contact information on the manufacturer's website or through your point of purchase.