1. Introduction
The FLAMMA FS22 Ekoverb is a stereo delay and reverb combo effects pedal designed for guitarists seeking versatile ambient soundscapes. This pedal integrates three distinct combinations of delay and reverb effects, offering a wide range of tonal possibilities. It features intuitive controls, dual footswitches, and stereo input/output for flexible integration into various setups.

The FLAMMA FS22 pedal, showcasing its red metallic chassis and control knobs.
2. Key Features
- 3 Delay & Reverb Combinations: Features Reverse Delay/Swell Reverb, Analog Echo Delay/Mod Reverb, and Analog Delay/Shimmer Reverb.
- Tap Tempo & Freeze Function: Dedicated footswitch for setting delay time and creating infinite sustain.
- Trail On Function: Allows effects to fade out naturally after bypass.
- True Bypass: Minimizes signal loss when the effect is disengaged.
- Stereo/Mono I/O: 1/4-inch unbalanced stereo and mono input/output jacks for flexible connectivity.
- Multi-knob Control: Independent controls for Delay (Level, Time, Tone, Feedback) and Reverb (Level, Decay, Tone, Pre-Delay).
- Durable Construction: Vibrant red metallic chassis.
3. Controls and Functions
The FS22 pedal features a comprehensive set of controls to shape your delay and reverb effects. Familiarize yourself with each knob and switch for optimal performance.

This diagram details the individual controls for both delay (Level, Time, Tone, Feedback) and reverb (Level, Decay, Tone, Pre-Delay) sections, allowing precise effect shaping.
3.1. Control Knobs
- DELAY LEVEL: Adjusts the volume level of the delay effect.
- DELAY TIME: Controls the delay time.
- DELAY TONE: Adjusts the tone color of the delay effect.
- DELAY FEEDBACK: Controls the number of delay repeats.
- REVERB LEVEL: Adjusts the volume level of the reverb effect.
- REVERB DECAY: Controls the decay time of the reverb effect.
- REVERB TONE: Adjusts the tone color of the reverb effect.
- REVERB PRE-DELAY: Controls the pre-delay time of the reverb effect.

A detailed view of the Level, Time, Tone, Feedback, Decay, and Pre-Delay knobs, along with the 1-2-3 mode selector switch.
3.2. Toggle Switch
- 1-2-3 Selector: This switch selects between the three available delay and reverb combo effects.
3.3. Footswitches
- TAP/HOLD Footswitch: Used for Tap Tempo functionality and activating the Freeze effect.
- BYPASS Footswitch: Engages or disengages the effect.
4. Setup
4.1. Power Supply
The FLAMMA FS22 requires a 9V DC power supply with a center-negative polarity. It is recommended to use an isolated or individual power supply to prevent unexpected noise caused by sharing a power supply with other pedals.
4.2. Connecting the Pedal
The FS22 features 1/4-inch unbalanced stereo and mono input/output jacks. Connect your instrument to the input(s) and your amplifier or other effects to the output(s).
- Mono Setup: Connect your guitar to INPUT-L (MONO) and connect OUTPUT-L (MONO) to your amplifier.
- Stereo Setup: Connect your guitar to INPUT-L (MONO) and another signal source (e.g., another pedal's stereo output) to INPUT-R. Connect OUTPUT-L and OUTPUT-R to two separate amplifiers or a stereo input device.

The FS22 supports both stereo and mono input/output, providing flexibility for various audio setups.
5. Operating Modes
The FS22 offers three distinct delay and reverb combinations, selectable via the toggle switch:

This image illustrates the three distinct delay and reverb combinations available on the FS22 pedal, including Reverse Delay/Swell Reverb, Real Echo/Mod Reverb, and Analog Delay/Shimmer Reverb.
| Setting | Effect Name | Description |
|---|---|---|
| 1 | Reverse Delay / Swell Reverb | Reverse delay combined with a slow attack reverb effect. |
| 2 | Real Echo / Mod Reverb | Analog real echo delay combined with a modulated reverb effect. |
| 3 | Analog Delay / Shimmer Reverb | Classic analog delay combined with a shimmering reverb effect. |
To select an operating mode, simply move the toggle switch to the desired position (1, 2, or 3).
6. Advanced Functions
6.1. Tap Tempo
The TAP/HOLD footswitch allows you to set the delay time by tapping it two or more times. The delay time will synchronize with your tap tempo.
6.2. Freeze Function
Press and hold the TAP/HOLD footswitch to activate the Freeze function. This will sustain the current effect sound indefinitely, creating ambient pads or drones. Release the footswitch to disengage Freeze.
6.3. Trail On Function
When the Trail On function is enabled, the effects will naturally decay and fade out even after the pedal is bypassed. This prevents an abrupt cut-off of the effect tail. Refer to the full manual for instructions on enabling/disabling this feature.

Key features such as Tap Tempo for setting delay time, Freeze for infinite sustain, Trail On for natural effect fade-out, and True Bypass for signal integrity are shown.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the pedal. Avoid using abrasive cleaners or solvents.
- Storage: Store the pedal in a dry environment, away from extreme temperatures and direct sunlight.
- Power: Always disconnect the power supply when the pedal is not in use for extended periods.
8. Troubleshooting
- No Sound: Ensure all cables are securely connected, the power supply is correctly plugged in, and the pedal is engaged (BYPASS LED is on). Check your instrument and amplifier connections.
- Unwanted Noise: Verify that you are using a 9V DC center-negative power supply. If using a daisy chain, ensure it is isolated or try an individual power supply for the FS22. Check for ground loops in your setup.
- Effect Not Working: Confirm the toggle switch is set to a desired effect mode (1, 2, or 3) and the effect level knobs are not set to zero.
If you encounter persistent issues, please refer to the official FLAMMA support resources or contact customer service.
9. Specifications
| Feature | Detail |
|---|---|
| Model | FS22 |
| Item Weight | 14.1 ounces (0.4 Kilograms) |
| Product Dimensions | 3.35 x 4.73 x 1.3 inches (4.1"L x 2.2"W x 5"H) |
| Body Material | Metal |
| Color Name | FS22 Delay Reverb Combo (Red) |
| Connector Type | 1/4-inch (6.35mm) audio jack |
| Hardware Interface | 1/4-inch Audio |
| Signal Format | Digital |
| Power Source | Corded Electric |
| Voltage | 9 Volts DC (Center Negative) |
| Style | Delay, Reverb |
10. Warranty and Support
FLAMMA products typically come with a limited warranty. Please refer to the warranty card included with your product or visit the official FLAMMA website for detailed warranty terms and conditions.
For technical support, product inquiries, or service requests, please visit the FLAMMA Store on Amazon or the official FLAMMA website.





