1. Product Overview
The Donner Verb Square is a compact digital reverb guitar pedal designed to provide a wide range of reverb effects for electric guitars. It features a durable aluminum-alloy casing and a true bypass design to ensure a transparent tone when the effect is disengaged. This pedal offers seven distinct reverb modes, allowing musicians to explore various ambient soundscapes.
Image 1: Front view of the Donner Verb Square Digital Reverb Guitar Pedal.
2. Features
- 7 Reverb Modes: Includes Room, Hall, Church, Spring, Plate, Studio, and Mod for diverse sound options.
- Digital Circuit Design: Ensures high-quality sound processing.
- True Bypass: Maintains signal integrity and prevents tone coloration when the pedal is off.
- Durable Construction: Built with a robust aluminum-alloy chassis for longevity.
- LED Indicator: Clearly displays the pedal's operational status.
- Compact Size: Pedal-board friendly design for easy integration into existing setups.
3. Controls and Functions
The Verb Square pedal features four main controls to shape your reverb sound:
- Mode Knob: Selects one of the seven distinct reverb types (Room, Hall, Church, Spring, Plate, Studio, Mod).
- E.LEVEL Knob: Adjusts the overall volume or mix level of the reverb effect.
- DECAY Knob: Controls the duration of the reverberation, from short to long.
- TONE Knob: Modifies the brightness or darkness of the reverb sound.
- Footswitch: Engages or disengages the reverb effect.
- LED Indicator: Illuminates when the effect is active.
Image 2: Detailed view of the E.LEVEL, DECAY, and TONE control knobs.
Image 3: The mode selection knob with its seven reverb options.
4. Setup
4.1 Power Supply
The Donner Verb Square pedal requires a DC 9V power adapter with a center-negative plug. The power supply is not included with the pedal. Ensure the adapter provides at least 140mA (or 500mA as recommended in some documentation) to prevent malfunction or damage. This pedal does not operate on batteries and lacks a battery compartment.
Image 4: Important notice regarding power supply specifications.
4.2 Connections
- Connect your guitar to the INPUT jack (1/4-inch mono audio).
- Connect the OUTPUT jack (1/4-inch mono audio) to your amplifier or the next pedal in your signal chain.
- Plug the DC 9V center-negative power adapter into the DC 9V input on the pedal.
Image 5: Input and output jacks of the pedal.
5. Operating Instructions
- Power On: Once connected, the pedal is ready for use. The LED will light up when the effect is engaged.
- Select Reverb Mode: Rotate the large central knob to choose one of the seven reverb modes: Room, Hall, Church, Spring, Plate, Studio, or Mod.
- Adjust E.LEVEL: Turn the E.LEVEL knob to set the desired wet/dry mix of the reverb effect.
- Adjust DECAY: Use the DECAY knob to control how long the reverb trails last.
- Adjust TONE: Modify the TONE knob to brighten or darken the character of the reverb.
- Engage/Disengage Effect: Press the footswitch to toggle the reverb effect on or off. The LED will indicate the active state.
Image 6: The footswitch for engaging and disengaging the effect.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the pedal's surface. Avoid abrasive cleaners or solvents.
- Storage: Store the pedal in a dry environment, away from extreme temperatures and direct sunlight.
- Connections: Periodically check all cable connections for wear and tear to ensure optimal performance.
7. Troubleshooting
- No Sound: Ensure all cables are securely connected and the power supply meets the specified requirements (DC 9V, center-negative, at least 140mA). Check if the pedal is engaged (LED on).
- Poor Sound Quality/Noise: Verify that the power supply is stable and free from interference. Experiment with different cable types or signal chain positions. Ensure the TONE and E.LEVEL knobs are adjusted appropriately.
- Effect Not Engaging: Check the footswitch for proper operation. Ensure the power supply is connected and functioning.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Donner |
| Model Name | Verb Square |
| Model Number | EC965 |
| Audio Output Effects | Reverb (7 Modes) |
| Signal Format | Digital |
| Power Source | Corded Electric |
| Voltage | 9 Volts DC (Center Negative) |
| Amperage | 140 Milliamps (minimum) |
| Hardware Interface | 1/4-inch Audio Jacks |
| Product Dimensions (L x W x H) | 3.7" x 1.7" x 2" (approx. 93.5mm x 42mm x 52mm) |
| Item Weight | 0.25 Kilograms |
| Casing Material | Aluminum-alloy |
| Included Components | 1 x Donner Verb Square Pedal, 1 x User’s Manual |
Image 7: Dimensions of the Donner Verb Square pedal.
9. Warranty and Support
The Donner Verb Square Digital Reverb Guitar Pedal comes with a 1-year warranty from the date of purchase. For technical support, warranty claims, or further inquiries, please visit the official Donner website or contact their customer service department.
Official Donner Store: Donner Store on Amazon





