1. Introduction
The MOOER D7 Delay Guitar Pedal is a compact and versatile digital delay effect pedal designed for guitarists. It offers 6 different customizable delay effects, an integrated 150-second looper, Tap Tempo functionality, and the ability to store presets. This manual provides detailed instructions for setting up, operating, and maintaining your D7 pedal to ensure optimal performance.
2. Product Features
- 6 Customizable Digital Delay Effects: Choose from Tape, Liquid, Rainbow, Galaxy, Mod-Verse, and Low-Bit delay types.
- 150-Second Looper: Integrated loop recording function that can be used independently or in conjunction with delay effects.
- Storable Presets: All effect settings are customizable and can be stored for quick recall.
- Tap Tempo: Easily set the desired delay time by tapping the footswitch.
- Trail On/Off Function: Allows delay effects to fade out naturally after the pedal is disengaged.

Image: The MOOER D7 pedal highlighting its six distinct delay effects.
3. Setup
3.1 Power Connection
Connect a standard 9V DC power adapter (center negative, 300mA minimum) to the DC IN jack on the top of the pedal. Ensure the power supply meets the specifications to prevent damage.
3.2 Audio Connections
Connect your guitar or other instrument to the INPUT jack on the right side of the pedal. Connect the OUTPUT jack on the left side of the pedal to your amplifier or the next pedal in your signal chain. Use high-quality 1/4-inch audio cables for optimal sound integrity.
4. Controls and Functions

Image: Detailed view of the MOOER D7 control knobs and their functions.
4.1 Control Knobs
- TWEAK.1: Adjusts the first parameter of the selected delay mode.
- MIX: Controls the wet/dry ratio of the delay signal.
- TWEAK.2: Adjusts the second parameter of the selected delay mode.
- TIME: Controls the delay timing.
- F.B (Feedback): Controls the delay feedback levels.
- SAVE: Press to save current settings as a preset.
- TAP (Footswitch): Activates/deactivates the effect, sets tap tempo, or controls looper functions.
4.2 Delay Modes and Parameters
The D7 offers 6 distinct delay modes, each with unique TWEAK.1 and TWEAK.2 parameters. The 7th LED indicates the Looper mode.

Image: Overview of delay modes and their adjustable parameters.
| Mode | TWEAK.1 | TWEAK.2 | Description |
|---|---|---|---|
| 1. TAPE | FILTER | VIBRATO(MIX) | Tape machine delay simulation. |
| 2. LIQUID | STEP-PHASER (RATE) | STEP-PHASER (MIX) | Liquid-like modulation delay. |
| 3. RAINBOW | STUTTER (RATE & DEPTH) | PITCH DEGREE | Pitch changes with stutter speed. |
| 4. GALAXY | POST-SLOW GEAR | CHORUS (MIX) | Slow gear delay with chorus. |
| 5. MOD-VERSE | FLANGER | FLANGER (MIX) | Reversing play delay with flanger. |
| 6. LOW-BIT | PRE-SLOW GEAR | LOW BIT | Delay with slow gear and low bit effects. |
| 7. LOOPER | INPUT LEVEL | PLAY LEVEL | 150-second loop recording. |
4.3 Tap Tempo
In any delay mode, tap the footswitch twice or more to set the delay time. The LED will flash to indicate the set tempo.

Image: The D7 pedal illustrating the Tap Tempo feature.
4.4 Trail On/Off Function
The "Trail On" function allows the delay repeats to naturally decay after the effect is bypassed, preventing an abrupt cut-off. To toggle Trail On/Off, press and hold the footswitch while connecting the power supply.
5. Operating Instructions
5.1 Selecting Delay Modes
Rotate the central knob to select one of the 7 modes. The corresponding LED will illuminate to indicate the active mode.
5.2 Adjusting Parameters
Once a mode is selected, use the TWEAK.1, MIX, TWEAK.2, TIME, and F.B knobs to adjust the desired parameters for that specific delay effect. Refer to the table in Section 4.2 for parameter details per mode.
5.3 Saving Presets
To save your customized settings for a mode:
- Adjust the knobs to your desired settings for the current mode.
- Press the SAVE button. The LED for the current mode will flash.
- Press the SAVE button again to confirm. The LED will stop flashing, indicating the preset is saved.

Image: The D7 pedal demonstrating the save preset function.
5.4 Using the Looper (Mode 7)
When Mode 7 (Looper) is selected, the footswitch controls recording and playback:
- Single Press: Start recording. Press again to stop recording and start playback.
- Double Press: Stop playback.
- Press and Hold: Clear the recorded loop.
The looper has a 150-second recording capacity and can be used with any of the delay effects active.

Image: The D7 pedal highlighting its 150-second looper capability.
5.5 Tap Tempo Operation
To set the delay time using Tap Tempo, simply tap the footswitch two or more times at your desired tempo. The pedal will automatically adjust the delay time to match your taps.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | MOOER |
| Model | D7 |
| Voltage | 9 Volts DC (Center Negative) |
| Amperage | 300 Milliamps |
| Audio Output Effects | Delay |
| Controls Type | Knob |
| Hardware Interface | 1/4-inch Audio |
| Signal Format | Digital |
| Item Dimensions | 3.68 x 1.65 x 2.05 inches |
7. Maintenance
To ensure the longevity and proper functioning of your MOOER D7 pedal, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the pedal's exterior. Avoid using abrasive cleaners or solvents.
- Storage: Store the pedal in a dry environment away from extreme temperatures, humidity, and direct sunlight.
- Power Supply: Always use a compatible 9V DC (center negative) power supply with a minimum of 300mA. Incorrect power supplies can damage the unit.
- Connections: Ensure all cables are securely connected but do not overtighten. Disconnect cables when the pedal is not in use for extended periods.
8. Troubleshooting
If you encounter any issues with your D7 pedal, refer to the table below for common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Incorrect cable connections, no power, volume knobs set to zero. | Check all audio and power connections. Ensure power supply is correct. Adjust volume/mix knobs. |
| Effect not engaging | Footswitch not pressed correctly, pedal in bypass mode. | Press the footswitch firmly. Check if the effect LED is illuminated. |
| Unwanted noise/hum | Poor quality power supply, ground loop, faulty cables. | Use a regulated, isolated power supply. Try different cables. Ensure proper grounding. |
| Looper not recording/playing | Incorrect footswitch timing, loop memory full. | Refer to Section 5.4 for looper operation. Clear existing loop if necessary. |
9. Official Product Video
Video: Official demonstration of the MOOER New Micro Series D7 Delay Pedal, showcasing its features and sound capabilities.
10. Warranty and Support
The MOOER D7 Delay Guitar Pedal comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. For warranty claims or technical support, please contact MOOER customer service through their official website or your authorized dealer. Please retain your proof of purchase for warranty validation.







