Introduction
The Sennuopu DP-X680 is a versatile car audio system component, integrating a 6-channel power amplifier with an 8-channel digital sound processor (DSP). Designed to deliver high-resolution audio, it ensures accurate sound reproduction true to the artist's intention. With its powerful amplification and advanced DSP capabilities, the DP-X680 allows for a customizable and immersive in-car audio experience.
Video: Sennuopu DP-X680 Product Overview and Unboxing
Package Contents
Please check the box for the following items:
- Sennuopu DP-X680 Amplifier/DSP Unit
- Wired Remote Control
- Main Wiring Harness
- USB Cable
- HD Bluetooth Antenna
- Mounting Brackets
- Mounting Screws
- User Manual (this document)

Image: DP-X680 Amplifier and included accessories.
Specifications
| Feature | Specification |
|---|---|
| Model Name | X680 |
| Item Type | AMPLIFIERS |
| Item Size | 265mm*200mm*48mm |
| Item Weight | 4kg |
| Material | Aluminum |
| Color Name | black |
| Working Voltage | 10V~17V |
| Dynamic Range | ≥110dB |
| Signal To Noise Ratio (SNR) | ≥98dB |
| Noise Floor | ≤32uVrms |
| Channel Separation | ≥90dB |
| Total Harmonic Distortion (THD) | ≤0.05% |
| Frequency Response | 20 Hz–20 kHz |
| System Sampling Rate | 24 bit/96 kHz |
| High Level Input | 4 channels |
| RCA Input | 4 channels |
| Bluetooth Input | Bluetooth 5.1 |
| USB Input | Supports FLAC, APE, WAV, MP3, WMA, FIA, etc. (USB Format: FAT16/32, NTFS) |
| Optical Input | Supported |
| Sound Card Input | Supported |
| High Level Output (RMS) | 6 * 110 Watts @4Ω |
| High Level Output (MAX) | 6 * 280 Watts @4Ω |
| Bridged Output (CH5 & CH6) | 480 Watts @4Ω (Class AB) |
| RCA Output | 8 channels |
| Equalizer | 31-band, adjustable 20-20 KHz |
| Filters | Linkwitz-Riley, Bessel, and Butterworth |
| Filter Slope | 6~48 dB/Octave |
| Delay | 0-20 milliseconds (0-273 inches) |
| Phase Adjustment | 0 or 180° |
| Certification | CE, FCC, RoHS |
Setup
1. Physical Installation
The DP-X680 is designed for easy integration into your car's audio system. Ensure the vehicle's power is off before beginning installation.
Power Connections:
- 12V Power Supply: Connect the main 12V power cable to the designated terminal.
- Fuses: The unit requires a pair of 25A fuses for protection. Ensure they are correctly installed.
- Earthing Switch: Connect the earthing switch as per your vehicle's requirements.
- Start Switch Selection: Configure the start switch selection based on your car's ignition system.
- General Interface of Car Power Amplifier: Connect the main power amplifier interface.
- CH5 and CH6 Output: These are dedicated outputs for channels 5 and 6, which can be bridged for a subwoofer.

Image: Power Supply Connections (Rear Panel)
Audio Input/Output Connections:
- Low-level Signal Input RCA Sockets (IN1-IN4): Connect your head unit's RCA outputs to these inputs.
- Low-level Signal Output RCA Sockets (OUT1-OUT8): Connect these outputs to external amplifiers or other audio components.
- PC Host Computer USB Interface: Use this port to connect the DP-X680 to a Windows PC for DSP tuning.
- HD Bluetooth Antenna: Attach the provided Bluetooth antenna for wireless audio streaming.
- External Audio Source Interface: For additional audio input sources.
- Optical Input Interface: Connect optical audio sources for high-quality digital audio.
- U Disk Interface: Insert a USB drive for direct audio playback.
- Color Screen Wire Control Interface: Connect the wired remote control unit.

Image: Audio Input/Output Connections (Front Panel)
Speaker Wiring Diagrams:
The DP-X680 supports various speaker configurations. Below are examples of how to connect your speakers for different setups. For specific car models, a special car wiring harness may be required (sold separately).

Image: Car Panoramic Sound System Setup Example

Image: General Wiring Diagram

Image: Example Speaker Configurations
2. Software Installation
To fully utilize the DSP features, you will need to install the tuning software on a compatible device.
- For Windows PC: Connect the DP-X680 to your PC via the USB interface. Download the PC tuning software from the official Sennuopu website or by scanning the QR code provided in the manual.
- For Android Devices: The APP supports Android phones with OS version 9.0 or higher. Scan the QR code below using your phone's camera or a QR code scanner app. Follow the on-screen instructions to download and install the app. (Note: iPhone is not supported for the app.)

Image: Software Download QR Codes and Instructions
Operating Instructions
1. Audio Input Modes
The DP-X680 offers multiple ways to input audio:
- Bluetooth Input: Connect your smartphone or other Bluetooth-enabled device wirelessly.
- USB Input: Play music directly from a USB drive (supports FLAC, APE, MP3, WAV, AAC, WMA).
- OTG Input: Connect compatible devices via OTG.
- Optical Input: For high-fidelity digital audio from sources like CD players.
- High/Low Level Input: Connect to your car's head unit via RCA or high-level speaker outputs.

Image: Audio Input Options

Image: Bluetooth Connection and Hi-Res Audio
2. DSP Adjustment
The 8-channel DSP allows for precise tuning of each audio channel. Use the PC software or Android app for detailed adjustments:
- 31-Band EQ: Fine-tune the frequency response from 20 Hz to 20 kHz.
- Filters: Selectable high-pass, low-pass, and band-pass filters with various characteristics (Butterworth, Bessel, Linkwitz-Riley) and slopes (6-48 dB/octave).
- Delay: Adjust time alignment for each channel (0-20 milliseconds) to optimize the sound stage.
- Phase Adjustment: Set phase to 0 or 180° for individual channels.

Image: DSP Tuning Software Interface
3. Power Amplifier Usage
The built-in 6*110 Watts (RMS) power amplifier provides ample power for your car speakers. Channels 1-4 are typically used for front and rear full-range speakers, while channels 5 and 6 can be bridged to drive a powerful 450 Watts bass speaker (subwoofer).
Maintenance
To ensure the longevity and optimal performance of your DP-X680, follow these maintenance guidelines:
- Cleaning: Regularly wipe the unit with a soft, dry cloth to remove dust. Avoid using harsh chemicals or abrasive cleaners.
- Ventilation: Ensure the unit has adequate ventilation to prevent overheating. Do not block the cooling fins.
- Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion.
- Environment: Avoid exposing the unit to extreme temperatures, direct sunlight, or excessive moisture.
Troubleshooting
If you encounter issues with your DP-X680, please refer to the following common troubleshooting steps:
- No Power: Check the 12V power supply connection, ground connection, and ensure the 25A fuses are intact. Verify the vehicle's battery is charged.
- No Sound:
- Check all audio input and output connections.
- Ensure the correct input source is selected on the remote control or app.
- Verify speaker wiring and ensure speakers are functioning correctly.
- Check DSP settings for muted channels or incorrect gain levels.
- Distorted Sound:
- Reduce the gain levels on the amplifier or head unit.
- Check for loose speaker wires or damaged speakers.
- Review DSP equalizer and filter settings for extreme adjustments.
- Bluetooth Connection Issues: Ensure the Bluetooth antenna is securely attached. Try re-pairing the device.
- Software Connection Issues (PC/App): Ensure the USB cable is properly connected. For the app, verify your Android device meets the OS requirements (9.0+).
If problems persist, please contact Sennuopu customer support for further assistance.
User Tips
- Optimize Your Sound Stage: Utilize the DSP's time delay feature to align the sound from each speaker, creating a more focused and immersive listening experience in your car.
- Custom EQ Profiles: Experiment with the 31-band equalizer to create custom sound profiles for different music genres or listening preferences. Save these profiles for quick access.
- Subwoofer Integration: If using a subwoofer, bridge channels 5 and 6 for maximum power delivery and use the DSP's low-pass filter to ensure clean, deep bass.
- High-Resolution Audio: For the best audio quality, use the optical input or play lossless audio files (FLAC, WAV) via the USB input.
Warranty and Support
The Sennuopu DP-X680 comes with a 1-year warranty from the date of receipt. This warranty covers manufacturing defects but does not cover damage caused by accident, misuse, or unauthorized modification. For any issues or questions regarding your product, please contact Sennuopu customer support.

Image: 1-Year Warranty Terms




