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Quick Start
 

QuickStart
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Introduction

Thank you for choosing the Everlast Delay by Klowra. Everlast Delay is a stereo delay pedal featuring nine high-quality delay types, including classic analog emulations, versatile digital delays, and modern, inspiring echoes. Powered by a refined algorithmic engine, it offers open parameter control and dynamic modulation for a wide range of creative applications.

 

Equipped with the Bloom Infinity Series-exclusive Ramp function and Tap Tempo, Everlast Delay offers dynamic, expressive control. Connect an expression pedal or footswitch to unlock even more creative possibilities. With Analog Dry-Through, selectable True or Buffered Bypass, and multiple stereo output modes—including True Stereo and Ping-Pong—Everlast ensures tonal integrity and adaptability across a wide range of performance and studio scenarios.

Highlights


Knobs and Switches

Knobs and Switches

TIME

Set the delay time, you can adjust the length of the delay from 50ms to 1200ms.

REPEAT

Adjust the number of delay repetitions, Go from one repeat at full counterclockwise, to near infinite at full clockwise.

MIX

Controls the mix between the dry and wet signals. At the minimum, it outputs full dry signal; at the maximum, it outputs full wet signal with no dry signal. A 50/50 mix occurs around 2 o’clock on the knob.
 

DELAY SELECT

TAPE - Inspired by vintage tape echoes, this mode blends modern digital tech to expand sound options. It replicates classic tape effects like limited frequency range, compression/saturation, motor drift, and tape flutter.

DIGITAL - This Hi-Fi delay mode delivers clean, accurate sound. Use the Texture knob to add vibrato effects ranging from smooth to gritty, boosting texture and movement in your audio.

ANALOG - Unlike digital delay, this mode delivers warm, organic echoes. It mimics analog imperfections like subtle degradation, compression, and clock-drift noise. Adjust the Texture knob to blend in chorus-like textures and amplify the wobbly, drifting character of vintage gear.

REVERSE - This reverse mode crafts surreal guitar tones. Unlike basic signal flipping, it uses smart processing to tighten and shape the reversed sound musically. Twist the Texture knob to add fluttery vibrato—ideal for dreamy atmospheres or mysterious, ambient vibes.

SWELL - This mode crafts ambient pads using guitar volume swells, capturing only the fading harmonics while keeping the dry signal crisp. The Texture knob shapes the decay’s distortion intensity, morphing textures from dreamy washes to eerie, haunting tones.

GRANULE - This mode splits the input into audio grains, applies real-time pitch-shifting and rearranging, then feeds them into the delay line. The Texture knob adjusts both delay modulation and grain size: turn counterclockwise for glitchy textures (small grains) or clockwise for shimmering effects (large grains), offering a dynamic range from chaotic glitches to ethereal soundscapes.

CRYSTAL - This mode evokes the sound of light refracted through glass—each repeat shimmers upward like a glint of sunlight on ice, layering your guitar with an airy, celestial glow. Its pitch-shifted echoes drift through space like sonic prisms, perfect for painting cinematic soundscapes, ambient swells, and post-rock textures that feel both otherworldly and infinite.

SWEEPER - This mode blends a CRY BABY-style resonant low-pass filter with sine-wave modulation for vintage tones. The TONE knob sets the sweep’s base frequency (clockwise raises pitch), while Texture knob adjusts sweep width and speed. Combine both to craft synth-like atmospheric delays with retro-modern textures.

MOD - This mode washes each echo in gentle ripples, like sound waves drifting through liquid. By weaving subtle chorus or vibrato into the repeats, it transforms sterile delays into lush, breathing textures—swirling with warmth, movement, and a touch of vintage soul.

TEXTURE
Adjusts the texture of the delay reflections. Turning the control to the right softens the early reflections and produces a smooth onset of the delay.

 

TONE

Controls the brightness of the wet signal. Turn left to darken the repeats for a mellow, analog-like tone, or right to brighten them for more presence and clarity.

Footswitch

Control ON/OFF. Press&Hold to trigger Tap tempo or Ramp

Refer to the *Tap Tempo* or *Ramp* section for details.

The LED Button

Lit when active, pressed or in combination with other knobs to adjust various functions and Hidden Parameters.

 

Hidden Parameters

  • Rhythm

Tap Tempo supports three rhythmic subdivisions. Select the desired subdivision by rotating the knob:

  • Quarter-note: Turn the knob fully counterclockwise (leftmost position).​

  • Eighth-note triplet: Turn the knob fully clockwise (rightmost position).

  • Dotted eighth-note: Set the knob to the 12 o’clock position.

  • RampATK

Controls the attack time of the Ramp modulation, determining how quickly the fade reaches the Snap-Set. A shorter attack time results in a quicker transition to the Snap-Set, while a longer attack time creates a smoother, more gradual fade.

  • RampRLS

Controls the release time of the Ramp modulation, determining how gradually the transition fades back to the Panel-Set. A shorter release time results in a quicker return to the Panel-Set, while a longer release time provides a more drawn-out, fluid return to the Panel-Set.

For adjustments to Hidden Parameters, please refer to the *Description of the LED Button* section.

Rear Panel I/O


Rear Panel I/O
 

9V DC 

Connect to a 9V DC power supply with a center-negative polarity and a minimum current rating of 250mA.

 

Note: If the power supply is insufficient, the pedal may malfunction.

 

IN L (Mono)

1/4" mono (TS) unbalanced left input for mono setups.
 

IN R (Stereo)

1/4" mono (TS) unbalanced right input for mono setups.

OUT L (Mono)

1/4" mono (TS) unbalanced left output for mono setups.

 

OUT R (Stereo)

1/4" mono (TS) unbalanced right output for stereo setups.

 

CTRL

1/4" stereo (TRS) balanced input for connecting an expression pedal or external footswitch.


Note: Please refer to the *External Control* section for information on how connection is recognized.

Signal Path


Signal Path
 

Configuring the In/Out Settings

1-in, 1-out

  • Mono input with mono output. The dry and wet signals are mixed together in the mono output.

  • In the Ping-pong Stereo mode, the IN L is connected and the output is connected to OUT R, it will activate the Long Delay mode. In this mode, the TIME parameter range will change from 50-1200ms to 100-2400ms.

 

1-in, 2-out

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  • For the IN L, the dry and the wet sounds are mixed when stereo output.

  • In the Ping-pong Stereo mode, for the IN L, the dry and the wet sounds mixed are bounce or "ping-pong" between OUT L&R.

*Ping-pong Stereo Mode :
The wet signal bounces between the left and right channels, creating a wide,Rhythmic 
stereo effect. This alternating movement adds depth and motion, making the delay feel 
spacious, immersive, and alive in the mix.*
To select Ping-pong Stereo mode, see the * Power-Up Modes*  section.

 

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  • Dry/Wet Separation output : For the IN R, OUT R carries the dry signal; OUT L carries the wet signal. 

 

*Dry/Wet Separation outputs allows a guitar signal to be split into two distinct paths: one carrying the unaffected (dry) sound, and the other carrying the processed (wet) effect signal. This configuration offers a range of creative and practical applications, particularly useful for live performances, studio setups, and

advanced signal routing. *

The LED Bottom


Description of the LED Button
 

The LED button is the heart of the Limbo.
You can determine the current operating status of the Limbo by observing the color of the LED button. The LED button can be pressed briefly or in combination with other knobs to adjust various functions or parameters.

Learning to interpret the LED colors and understanding the different ways the button can be pressed are essential for familiarizing yourself with the Limbo’s operation.

What the LED Colors Mean

  • White : Freeze/Infinity function active; 

  • Blue : Freeze/Infinity is actively being triggered.

  • Orange : Ramp function active; 

  • Violet : Ramp is actively being triggered.

What the Button Can Adjust

  • Toggle the Freeze/Infinity or Ramp 

Press once to switch between Freeze/Infinity and Ramp.

  • Save Snap-Set

Press&Hold to save the current parameter settings as Snap-Set.

The LED blinks violet to confirm.

Press&Hold while rotating the knob above the hidden parameters.

Successful adjustment is indicated by the LED blinking yellow.
 

Tap Tempo

*Press and hold the footswitch while the LED is white. When the LED turns blue, you’ve entered Freeze or Infinite.*

 

This special feature allows your sound to continue indefinitely without decay, using advanced effects processing. It's ideal for crafting surreal ambiences, sustained sonic textures, or freezing a single moment in your playing for creative layering.
 

Freeze

The Freeze effect captures a brief snapshot of your sound—such as a chord, note, or ambient noise—and holds it in place, creating a static, sustained pad that you can play over in real time.

- How It Works

When you Press&Hold the footswitch, Limbo records a short audio snippet of what you're currently playing. It then loops or processes that snippet to generate a continuous, frozen tone.This held tone continues until you release the footswitch.

 

Infinite

The Infinite effect in a guitar effect pedal is an advanced version of a Freeze effect. It allows you to capture and sustain a layer of sound indefinitely, often with more layering, control, and ambient depth than a standard freeze.

 

- How It Works

When you Press&Hold the footswitch, Limbo will continuously record and process your live signal, blending it into a growing, infinite texture. The effect lasts until you release the footswitch.

 

Note: Please refer to the Power-Up Modes section to select between:

  • Freeze / Infinite modes.

  • Momentary / Latching behavior.


Ramp
 

Ramp

*Press and hold the footswitch while the LED is orange. When the LED turns violet, you’ve entered Ramp.*

Ramp allows for smooth, dynamic transitions between two sets of parameters:

  • Panel-Set–Your current front-panel parameter settings.

  • Snap-Set–A saved set of parameters stored using the LED button.

 

This feature creates expressive, evolving fades that add depth, movement, and emotion to your sound. The speed and character of the transition are defined by two parameters:


RampATK (Attack Time):

Controls how quickly the effect fades from the Panel-Set to the Snap-Set.

- A shorter attack gives a fast, sharp transition.

- A longer attack creates a smoother, more gradual fade.

 

RampRLS (Release Time):

Controls how quickly the sound returns from the Snap-Set to the Panel-Set.

- A shorter release results in a quick recovery.

- A longer release provides a more drawn-out, fluid return.

 

Ramp Modes

Ramp supports two switching modes - Momentary and Latched—giving you flexibility to match your performance style.

Momentary Mode:

Press&Hold the footswitch to fade into the Snap-Set over RampATK time.Release the footswitch to return to the Panel-Set over RampRLS time.

 

Latched Mode:

Press once to transition to the Snap-Set (RampATK), and press again to return to the Panel-Set (RampRLS).

 

To select between Momentary and Latched modes, see the *Power-Up Modes* section.

Power-Up Modes


Power-Up Modes
 

How To enter Power-Up Modes:

Press & hold the footswitch while powering on the pedal. A flashing LED indicates successful entry. Once your settings are configured, press the footswitch again to exit Power-Up Modes.

 

In this mode, you can adjust the following settings:

Bypass & Trails Modes

Switch between modes by short-press the LED button.

  • True Bypass

The signal is routed directly through the pedal with no buffering or coloration.

  • Green LED flashes to indicate True Bypass mode.

  • Buffered Bypass(Trails on)

The signal is routed through a buffer with Analog Dry Through, allowing delay trails to continue after the effect is bypassed.

  • Red LED flashes to indicate Buffered Bypass mode.
     

Freeze/Infinite Switching

Select by rotating the DECAY knob.

- Turn fully left for Freeze (LED flashes yellow 3x).

- Turn fully right for Infinite ( LED flashes blue 3x).

 

Ramp Lock

Select by rotating the BRIGHT knob.

- Turn fully left for Momentary (LED flashes yellow 3x).
- Turn fully right for Latched ( LED flashes blue 3x).

  • Momentary:

Hold the footswitch to transition to Snap-Set over RampATK time. Release to return to the current set over RampRLS time.

  • Latched:

The first press transitions to Snap-Set over RampATK time. The second press returns to the current set over RampRLS time.

 

Freeze/Infinite Lock

Select by rotating the TEXTURE knob.

- Turn fully left for Momentary (LED flashes yellow 3x).
- Turn fully right for Latched (LED flashes blue 3x).

  • Momentary: The effect is active only while the footswitch is held down.

  • Latched: The effect toggles on or off each time you press the footswitch.

LED Brightness

Adjust by rotating the SIZE knob.

- Turn fully left for dimmest.
- Turn fully right for brightest.

External Control

Connection & Activation

When connecting an external TS/TRS footswitch or expression pedal, the LED indicator will flash red. Trigger the footswitch or pedal repeatedly during this state. 
Once the connection is successfully recognized, the Limbo will return to normal operation.
Note: If the External Control is not fully activated, it may result in limited functionality.

External Footswitch Compatibility

When connecting an external TS/TRS footswitch, there are two specific functional settings, depending on the color of the LED indicator:

  • LED White - The current footswitch-specific function is Freeze/Infinite.

    • TS Footswitch : Momentary triggers Ramp.

    • TRS Footswitch:

      • Tip Position: Momentary triggers Ramp.

      • Ring Position: Momentary triggers Freeze/Infinite .

  • LED Orange - The current footswitch-specific function is Ramp

    • TS/RS Footswitch: Momentary triggers Freeze/Infinite.

    • TRS Footswitch:

      • Tip Position: Momentary triggers Ramp.

      • Ring Position: Momentary triggers Freeze/Infinite.

Expression Pedal Compatibility

When an expression pedal is connected, it takes direct control over the Ramp by blending between the Panel-Set and Snap-Set. In this mode:

  • The Ramp ATK and Ramp RLS parameters are disabled.

  • Ramp cannot be triggered by Press&Hold the footswitch.

  • The expression pedal locks Limbo into LED White (Freeze/Infinite active), and mode switching to LED Orange (Ramp active) is disabled.
     

Firmware Update
Specs

How do I update my Klowra pedal?

1/ Download the latest firmware update file for your model from the relevant model page. 

2/ Connect the Klowra pedal to your computer using the USB-C data cable. 

3/ Hold down footswitch&the LED button while powering on, the LED flashing red.

4/ Open the firmware update file. Please avoid opening multiple installers at the same time, as this may cause detection issues. Click Update to begin installing the firmware.

5/ After the successful update, the LED turns off. Restart the pedal and enjoy!

​​

STILL UNABLE TO CONNECT KLOWRA PEDAL?

If reconnecting the pedal or restarting the software doesn't help, check the following:
1. Verify that the USB data cable is securely connected to both the pedal and your computer, and try using a different USB port if necessary.
2. Replace the USB data cable with a known-good one and attempt to reconnect the pedal.

IF THE PROBLEM CONTINUES, PLEASE FOLLOW THESE STEPS:

1. Close the update software, and then follow the steps below in order.
2. Connect your klowra pedal to your computer with a USB data cable (not included).

3. Relaunch the update software.
4. Power on the pedal while holding both the footswitch and the LED button.
5. The LED button wil flash red. Wait a moment, then click "Update" to begin the firmware process.

Inputs
2 x 1/4"TS Instrument jacks
Input Impedance
500k Ohm
A/D & D/A
24 Bit 44.1K Hz
Power Source
9V DC power supply required
External Control
TS/TRS Momentary footswitch, or TRS expression pedal
Hardware Interface
USB-C
Outputs
2 x 1/4"TS Instrument jacks
Output Impedance
100 Ohm
Max Input Level
+10 dBu
Current Draw
250mA
Bypass Mode
Switchable: True Bypass, Buffered Bypass(AnalogDry-Through)
Dimensions
54.7mm H x 124.8mm D x 69.2mm W(2.0"H x 4.9"D x 2.7"W)
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