Introduction
Welcome to the user manual for your Edifier D12 Integrated Desktop Computer Speakers. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your new audio system. Please read this manual thoroughly before use to ensure optimal performance and longevity of your speakers.
The Edifier D12 is a versatile stereo tabletop speaker system designed for various audio sources, offering rich and warm sound through its quality wooden enclosure. It features multiple connectivity options including Bluetooth 5.0, RCA, and AUX inputs, along with a subwoofer line-out.
What's in the Box
Carefully unpack the contents and ensure all items are present:
- Edifier D12 Speakers
- Remote Control
- 3.5mm-RCA Audio Cable
- RCA-RCA Audio Cable

Image: The Edifier D12 speaker unit with its included remote control, showcasing the wooden side panels and front grille.
Setup
Placement
For optimal sound performance, place the Edifier D12 speakers on a stable, flat surface. Ensure there is adequate space around the unit for proper ventilation.

Image: The Edifier D12 speaker positioned on a white cabinet, demonstrating a typical tabletop setup.
Connecting to Power
- Ensure the power switch on the rear panel of the speaker is in the "OFF" position.
- Connect the power cord to the power input on the rear of the speaker.
- Plug the other end of the power cord into a wall outlet.

Image: Rear panel of the Edifier D12 speaker, highlighting the power switch, power input, and various audio input ports (Line Out, Aux In, Line In).
Audio Connections
The Edifier D12 offers multiple ways to connect your audio sources:
- RCA Input (Line In): Use the RCA-RCA audio cable to connect devices like CD players, DVD players, or other audio equipment with RCA outputs.
- AUX Input: Use the 3.5mm-RCA audio cable to connect devices with a 3.5mm audio jack, such as computers, tablets, or smartphones.
- Bluetooth: For wireless connection, refer to the "Bluetooth Pairing" section under Operating.
- Line Out: This port allows you to connect an external subwoofer or active speakers for enhanced bass or expanded sound. The D12 will continue to output full-range audio when using the Line Out.
Operating
Powering On/Off
Flip the power switch on the rear panel to the "ON" position to power on the speakers. Flip it to "OFF" to power off.
Controls
The Edifier D12 features convenient controls on the top panel and a wireless remote control.
Top Panel Controls
- Volume/Input Knob: Rotate to adjust volume. Press to cycle through input modes (Bluetooth, AUX, Line In).
- Treble Knob: Rotate to adjust treble levels.
- Bass Knob: Rotate to adjust bass levels.

Image: Top view of the Edifier D12 speaker, clearly showing the three control knobs for volume/input, treble, and bass.
Remote Control Functions
The wireless remote control provides convenient access to various functions:
- Power On/Off
- Volume Up/Down
- Mute
- Input Selection (Bluetooth, AUX, Line In)
- Playback Controls (Play/Pause, Next Track, Previous Track - for Bluetooth mode)
- Movie Mode (enhances sound for cinematic experience)
Bluetooth Pairing
- Turn on the Edifier D12 speakers.
- Select Bluetooth input mode by pressing the Volume/Input knob on the speaker or the Bluetooth button on the remote. The indicator light will flash rapidly.
- On your Bluetooth-enabled device (e.g., smartphone, tablet, computer), search for "EDIFIER D12" in the Bluetooth settings.
- Select "EDIFIER D12" to pair. Once connected, the indicator light will glow steadily.
- If prompted for a password, enter "0000".
Note: The Bluetooth connection has a stable range of approximately 7 meters (23 feet) with compatible Bluetooth 5.0 devices.
Maintenance
To ensure the longevity and optimal performance of your Edifier D12 speakers, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the surface of the speakers. Do not use liquid cleaners or aerosol sprays, as they may damage the finish or internal components.
- Placement: Avoid placing the speakers in direct sunlight, near heat sources, or in areas with high humidity or dust.
- Ventilation: Ensure proper airflow around the speaker to prevent overheating. Do not block the ventilation openings.
- Power Off: When not in use for extended periods, it is recommended to power off the speakers from the main switch and unplug them from the power outlet to conserve energy and protect against power surges.
Troubleshooting
If you encounter any issues with your Edifier D12 speakers, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Power not connected; Incorrect input selected; Volume too low; Audio cable loose. | Check power connection and switch; Ensure correct input (Bluetooth, AUX, Line In) is selected; Increase volume; Reconnect audio cables securely. |
| Bluetooth connection fails | Speakers not in pairing mode; Device too far; Interference; Device already connected to another speaker. | Ensure speakers are in Bluetooth pairing mode (flashing indicator); Move device closer; Avoid strong electromagnetic interference; Disconnect from other Bluetooth devices. |
| Distorted sound | Volume too high (source or speaker); Poor audio source quality; Loose cable connection. | Reduce volume on both source and speaker; Try a different audio source; Check and secure all audio cable connections. |
| Remote control not working | Battery depleted; Obstruction between remote and speaker; Remote not pointed correctly. | Replace remote battery (1 Lithium Metal battery required); Remove any obstructions; Point remote directly at the speaker's front panel. |
If the problem persists after trying these solutions, please contact Edifier customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Edifier D12 |
| Speaker Type | Multi Room |
| Material | Wood |
| Connectivity Technology | RCA, Bluetooth, Auxiliary |
| Wireless Communication Technology | Bluetooth 5.0 |
| Audio Output Mode | Stereo |
| Speaker Maximum Output Power | 70 Watts RMS |
| Woofer Diameter | 4 Inches (x2) |
| Tweeter Size | 19mm silk dome (x2) |
| Signal-to-Noise Ratio | 85 dB |
| Product Dimensions | 36.9"D x 16.9"W x 21.4"H (Note: These dimensions appear to be for packaging or an unusual measurement. Please refer to the product image for visual scale.) |
| Item Weight | 10.14 pounds (approx. 4.6 kg) |
| Power Source | Corded Electric |
| Controller Type | Remote Control |
| Batteries Required (Remote) | 1 Lithium Metal battery |
Note: Specifications are subject to change without prior notice.
Warranty and Support
The Edifier D12 Integrated Desktop Computer Speakers come with a Limited Warranty provided by Edifier. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Edifier website.
For technical support, troubleshooting assistance, or warranty claims, please contact Edifier customer service.
Manufacturer: Edifier
For more information, visit the Edifier Store on Amazon.