1. Product Overview
The AIYIMA DP02 is a versatile digital audio player, decoder, and preamplifier designed for high-fidelity audio systems. It features an AKM4493 decoding chip, QCC5125 Bluetooth 5.1 chip, and supports a wide range of audio inputs and outputs, including DSD512 and various high-resolution formats. The device also includes an OLED display with a dynamic VU meter for visual feedback.
Package Contents
Ensure all items are present in the package:
- 1 × DP02 Digital Player
- 1 × Bluetooth antenna
- 1 × User Manual
- 1 × Optical Cable
- 1 × Remote Control (requires 2*AAA batteries, not included)
- 1 × DC 12V Power Adapter
- 1 × 32G SD Card
2. Setup
2.1 Connecting the Power Adapter
- Locate the DC 12V power input port on the rear panel of the DP02.
- Connect the provided DC 12V Power Adapter to this port.
- Plug the power adapter into a suitable power outlet.
2.2 Attaching the Bluetooth Antenna
- Screw the Bluetooth antenna into the RF connector on the rear panel.
- Ensure the antenna is securely fastened for optimal Bluetooth reception.
2.3 Audio Input Connections
The DP02 supports multiple audio input sources:
- USB Input: Connect a USB flash drive or hard drive to the USB port labeled "AUDIO INPUT".
- Optical Input: Use an optical cable to connect devices like DVD players or TVs to the OPT input port.
- SD Card Input: Insert an SD card into the SD CARD slot on the side panel.
- Bluetooth Input: Pair your mobile phone, tablet, or computer via Bluetooth 5.1.
2.4 Audio Output Connections
The DP02 offers various output options to connect to your audio system:
- Coaxial Output (COA): Connect to a compatible amplifier or decoder using a coaxial cable.
- Optical Output (OPT): Connect to a compatible amplifier or decoder using an optical cable.
- Balanced XLR Output (RIGHT/LEFT): For professional audio setups, connect to amplifiers or active speakers with XLR inputs.
- RCA Output (L/R): Connect to amplifiers, passive speakers (via an amplifier), or active speakers using RCA cables.
3. Operating Instructions
3.1 Front Panel Controls
- ON/OFF Button: Press to power the device on or off.
- MENU Button: Press to access the main menu. A light press switches the volume.
- Return Button: Used to go back to the previous menu or main screen.
- Playback Controls (Previous, Play/Pause, Next): Used for navigating tracks and controlling playback. Long press for fast rewind/forward in U disk/SD card mode.
- Infrared Receiving Window: For remote control operation.
- VU Level Meter: Displays audio signal levels.
- Display Screen: Shows current status, input mode, playback information, and menu options.
3.2 Menu Navigation and Settings
Use the MENU button and playback controls to navigate the on-screen menu:
- Volume: Adjust the output volume.
- Input: Select desired input source (SD, USB, Bluetooth, OPT).
- Mode: Choose playback modes (Disk Cycle, List Cycle, Single Cycle, Shuffle Play).
- VU: Adjust the VU meter pointer and switch between internal and external signal modes.
- Bright: Modify the brightness of the VU meter and display screen.
- Language: Select from multiple languages including Chinese, English, French, German, Japanese, Vietnamese, Spanish, and Russian.
3.3 Remote Control Operation
The DP02 comes with a remote control for convenient operation. Ensure 2*AAA batteries are installed. The remote allows control over all functions, including power, volume, input selection, playback, and menu navigation.
3.4 Video Demonstration
4. Specifications
| Feature | Specification |
|---|---|
| Model | DP02 |
| Chipset | AKM4493+NE552*2+OPA1615*2+QCC5125 |
| Bluetooth Chip | QCC5125 |
| Bluetooth 5.1 Support | SBC, AAC, APTX, APTX-LL, APTX-HD, LDAC |
| WAV Support | Up to 768KHz/32Bit |
| FLAC Support | Up to 192KHz/24Bit |
| APE/MP3 Support | Up to 48KHz/16Bit |
| DFF/ISO/DSF Support | DSD512 |
| DTS Support | Outputs front left and front right channels only |
| File System | Multi-partition not supported |
| Firmware Update | Supports USB flash disk upgrade |
| Hard Disk Format | FAT32, exFAT |
| Hard Disk Capacity | Maximum 2TB |
| USB Flash Disk / SD Card Capacity | Maximum 512G |
| Optical Sampling Rate | Maximum 192KHz/24Bit |
| Distortion | 0.0006% |
| Signal-to-Noise Ratio (RCA) | ≥116dB |
| Frequency Response | 20Hz-20KHz (±0.5dB) |
| Rated Output Level (RCA) | 1.9V |
| Rated Output Level (XLR) | 3.8V |
| Input Modes | Optical fiber, U disk, SD card, Bluetooth |
| Supported Devices | Cell phone, tablet, computer, MP3, TV, U disk, SD card, etc. |
| Output Modes | Optical fiber, coaxial, RCA, XLR |
| Working Power Supply | DC 12V/≥1.5A |
| Dimensions (L*W*H) | 165mm * 105mm * 53mm |
| Product Net Weight | 700g |
| Weight with Package | 945g (without power supply) |
5. Troubleshooting
- No Sound Output:
- Check all audio cable connections to ensure they are secure.
- Verify the correct input source is selected on the DP02.
- Ensure the volume is not set to minimum or muted on both the DP02 and your connected amplifier/speakers.
- Confirm the power adapter is correctly connected and the device is powered on.
- Distorted Sound:
- Check audio cables for damage or loose connections.
- Reduce the volume level on the DP02 or the connected amplifier to prevent clipping.
- Ensure the audio source is of good quality.
- Bluetooth Connection Issues:
- Ensure the DP02 is in Bluetooth input mode.
- Verify your Bluetooth device (phone, tablet) is within range and not connected to another device.
- Try unpairing and re-pairing the device.
- USB Drive/SD Card Not Recognized:
- Ensure the USB drive or SD card is formatted to FAT32 or exFAT.
- Check that the capacity does not exceed the maximum supported (2TB for hard disk, 512G for USB/SD card).
- Try a different USB drive or SD card to rule out media issues.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the DP02. Avoid using liquid cleaners or abrasive materials.
- Placement: Place the device on a stable, flat surface with adequate ventilation. Avoid direct sunlight, heat sources, and high humidity.
- Power: Disconnect the power adapter if the device will not be used for an extended period.
7. User Tips
- VU Meter Sensitivity: The DP02 has screws on the bottom that allow you to adjust the sensitivity of the VU meter for better display effects based on your audio levels.
- DTS Playback: When playing DTS format audio, the DP02 will output only the front left and front right channels.
- Synchronized Volume: The volume knob on the DP02 controls the volume of all audio outputs (Optical, Coaxial, RCA, XLR) synchronously.
- Automatic Return to Main Page: If no action is taken within five seconds while navigating menus, the device will automatically return to the main playback screen, saving energy and improving user experience.
8. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or refer to the official AIYIMA Audio Store website. Keep your purchase receipt as proof of purchase.
