1. Introduction
The JOYO Aquarius R-07 is a versatile multi-mode digital delay effect pedal designed for electric guitar. It features 8 distinct digital delay effects and an integrated looper function with up to 5 minutes of recording time. A key feature of the Aquarius R-07 is its ability to use both the looper and delay functions simultaneously, offering expanded creative possibilities. The pedal also includes a Tap Tempo function for precise delay time adjustments.

Image 1.1: Front view of the JOYO Aquarius R-07 Digital Delay Effect Pedal.
2. Important Safety Information
- Power Supply: Use only a DC 9V (center minus) power adapter with a current output of 150mA or greater. Incorrect power supplies can damage the unit and void the warranty.
- Environment: Do not expose the pedal to water, moisture, excessive heat, or direct sunlight. Operate in a clean, dry environment.
- Handling: Avoid dropping or subjecting the pedal to strong impacts. Do not attempt to disassemble or modify the unit. Refer all servicing to qualified personnel.
- Connections: Ensure all connections are secure before operating the pedal. Disconnect power when not in use or during cleaning.
3. Package Contents
Please check that all items are present in the package:
- JOYO Aquarius R-07 Digital Delay Effect Pedal
- User Manual
Note: A power supply is not included with this product. Please purchase a compatible DC 9V (center minus) power adapter separately.
4. Controls and Features
Familiarize yourself with the various controls and connections on your Aquarius R-07 pedal:

Image 4.1: Overview of the Aquarius R-07 pedal highlighting its controls.
- LEVEL Knob: Adjusts the output level of the delay effect.
- F.BACK Knob: Controls the number of delay repeats (feedback).
- TIME Knob: Sets the delay time.
- TONE Knob: Adjusts the tone or EQ of the delay repeats.
- VOL Knob: Controls the overall output volume of the pedal.
- MODE Selector Switch: Selects one of the 8 delay effects: DIGITAL, ANALOG, MOD, LOW BIT, GALAXY, REVERSE, TUBE ECHO, TAPE.
- LOOPER/TAP Footswitch: Activates/deactivates the looper function or sets the delay tempo.
- INPUT Jack: 1/4-inch mono input for your guitar or other instrument.
- OUTPUT Jack: 1/4-inch mono output to your amplifier or next pedal.
- DC 9V Input: Power input for a DC 9V (center minus) power adapter.
5. Setup
Follow these steps to connect your JOYO Aquarius R-07 pedal:
- Power Connection: Connect a DC 9V (center minus) power adapter (not included) to the DC 9V input jack on the pedal. Ensure the power adapter meets the specified current requirement of 150mA or more.
- Instrument Connection: Connect your electric guitar or other instrument to the INPUT jack of the pedal using a standard 1/4-inch instrument cable.
- Amplifier Connection: Connect the OUTPUT jack of the pedal to your amplifier's input or to the input of the next pedal in your signal chain using a standard 1/4-inch instrument cable.
- Power On: Once all connections are secure, connect the power adapter to a wall outlet. The pedal's LED lights will illuminate.

Image 5.1: Connection diagram and power supply requirements for the Aquarius R-07.
6. Operating Instructions
6.1. Delay Effects
The Aquarius R-07 offers 8 distinct digital delay effects. Rotate the MODE Selector Switch to choose your desired delay type:
- DIGITAL: Clear, precise digital delay.
- ANALOG: Warm, organic analog-style delay.
- MOD: Delay with modulation for chorus-like textures.
- LOW BIT: Lo-fi, degraded delay sound.
- GALAXY: Expansive, ethereal delay.
- REVERSE: Delay repeats played backward.
- TUBE ECHO: Warm, tape-like echo with tube characteristics.
- TAPE: Classic tape echo simulation.
Use the LEVEL, F.BACK, TIME, and TONE knobs to fine-tune the chosen delay effect to your preference.

Image 6.1: Adjusting controls on the Aquarius R-07 for optimal sound.
6.2. Looper Function
The integrated looper allows for up to 5 minutes of recording time. The looper and delay functions can be used simultaneously.
- Record: Press the LOOPER/TAP Footswitch once to start recording. The LED will indicate recording status.
- Play/Stop: Press the LOOPER/TAP Footswitch once again to stop recording and start playback of the loop. Pressing it again will stop playback.
- Overdub: While a loop is playing, press the LOOPER/TAP Footswitch once to enter overdub mode. Subsequent presses will toggle between overdub and playback.
- Undo/Redo: Press and hold the LOOPER/TAP Footswitch for approximately 2 seconds to undo the last overdub. Repeat to redo.
- Clear: Double-press the LOOPER/TAP Footswitch quickly to clear the current loop.
6.3. Tap Tempo
To set the delay time using Tap Tempo:
- While in delay mode (not looper recording/playback), tap the LOOPER/TAP Footswitch two or more times in rhythm. The pedal will calculate the average time between taps and set the delay time accordingly.
- The TIME knob will automatically adjust to reflect the tapped tempo. You can still fine-tune the delay time using the TIME knob after tapping.
7. Specifications

Image 7.1: Detailed specifications and dimensions of the Aquarius R-07 pedal.
| Feature | Specification |
|---|---|
| Rated Current Consumption | 150mA |
| Input Impedance | 2.2MΩ |
| Output Impedance | 100Ω |
| Working Voltage | DC 9V (center minus) |
| Item Weight | 0.55 lbs / 8.75 ounces (248 Grams) |
| Product Dimensions (L x W x H) | 4.29 x 1.89 x 2.64 inches (10.9 x 4.8 x 6.7 cm) |
| Body Material | Aluminum, Stainless Steel, Alloy, Carbon Fiber |
| Signal Format | Digital |
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the pedal's exterior. Do not use abrasive cleaners, solvents, or waxes.
- Storage: When not in use for extended periods, disconnect the power supply and store the pedal in a cool, dry place away from direct sunlight and extreme temperatures.
- Connections: Periodically check all cable connections for wear and tear. Replace damaged cables to ensure optimal performance and safety.
9. Troubleshooting
If you encounter issues with your Aquarius R-07 pedal, please refer to the following common problems and solutions:
- No Sound:
- Ensure the power supply is correctly connected and meets the DC 9V (center minus) 150mA requirement.
- Check all instrument cables for proper connection and functionality.
- Verify that your guitar and amplifier are working correctly.
- Adjust the pedal's VOL knob and your amplifier's volume.
- Unwanted Noise/Hum:
- Ensure you are using a regulated, isolated power supply designed for guitar pedals. Unsuitable power supplies can introduce noise.
- Check for faulty cables or poor connections.
- Move the pedal away from other electronic devices that may cause interference.
- Delay Effect Not Working:
- Ensure a delay mode is selected using the MODE switch.
- Adjust the LEVEL and F.BACK knobs to hear the effect.
- If using Tap Tempo, ensure you are tapping correctly and not in looper mode.
- Looper Not Recording/Playing:
- Follow the specific instructions for recording, playing, and overdubbing in Section 6.2.
- Ensure the loop is not cleared accidentally (double-press footswitch).
10. Warranty and Support
JOYO products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your purchase or contact your local JOYO distributor or retailer. For technical support or inquiries, please visit the official JOYO website or contact their customer service department. When contacting support, please provide your product model (Aquarius R-07) and purchase details.





