# ZEN AUDIO QUADILA — User Manual

• Version: 1.1.0
• Developer: ZEN AUDIO
• Supported Formats: VST3 / AU (macOS only)
• Supported OS: Windows 10 or later / macOS 11 or later
• Architecture: x86_64 / Apple Silicon (Universal Binary)

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# Table of Contents

• 1. INTRODUCTION
  • 1-1. About ZEN AUDIO QUADILA
• 2. INSTALLATION & ACTIVATION
  • 2-1. Installation
  • 2-2. License Status
  • 2-3. Activation
  • 2-4. Deactivation
• 3. USING ZEN AUDIO QUADILA
  • 3-1. Overview
  • 3-2. Knobs & Buttons
  • 3-3. Presets
  • 3-4. Utilities
• 4. SUPPORT

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# 1. INTRODUCTION

# 1-1. About ZEN AUDIO QUADILA

QUADILA is a multiband fuzz plugin developed by ZEN AUDIO and released in 2026. Designed for intuitive control, it lets you shape a wide range of distortion with ease, keeping you focused on sound design without losing your inspiration.

# Main Features

• Multiband Control
  Shape multiple independent bands freely, with intuitive and precise control.
• Resonance Filter
  A custom-designed resonance filter delivers a wide range of unique character with every tweak.
• 10 Shapers
  Choose from 10 uniquely designed shapers for each band to dial in your ideal distortion.
• Intuitive & Flexible Control
  Control each band and crossover intuitively, with confidence and precision.
• Visual Guidance
  A custom visual guide provides clear feedback on parameter changes.
• Auto Gain
  Apply independent auto gain to each band.
• Post Filter / Clipper
  Fine-tune your sound with an intuitive post filter and high-quality clipper.
• Preset System
  Includes presets created by Japanese artists active worldwide.
• 70+ Color Themes
  Choose from more than 70 GUI themes to customize the visual appearance.

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# 2. INSTALLATION & ACTIVATION

# 2-1. Installation

# Windows

1. Download the installer (.exe) from
   https://zen.audio/quadila

2. Run the installer and select the language.

3. Accept the EULA.

4. Choose installation components:

   • VST3 Plugin → C:\Program Files\Common Files\VST3\
   • Factory Presets

Installation path for VST3 can be customized.

5. Launch your DAW and scan plugin to load QUADILA.

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# macOS

1. Download the installer (.pkg) from
   https://zen.audio/quadila
2. Run the installer and select the language.
3. Accept the EULA.
4. Choose installation components.
5. Launch your DAW and scan plugin to load QUADILA.

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# 2-2. License Status

QUADILA operates differently depending on login and license status.

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# 2-3. Activation

1. Launch QUADILA in your DAW.
2. Click the License icon (key icon) or open
   Settings → Account & License.
3. Click Sign In to open ZEN AUDIO login page.
4. Sign in to your account.

• If you own a license, activation occurs automatically and the plugin switches to Activated mode.
• If you do not own a license, Trial mode begins.
• If your trial has expired, the plugin enters Trial Expired mode.

Once activated, QUADILA can be used offline indefinitely unless deactivated.

# Activation Limits

• One license can activate up to 2 devices simultaneously.
• To activate another device:
  • Purchase another license, or
  • Deactivate an existing device.

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# 2-4. Deactivation

Deactivation frees an activation slot so another device can be activated.

1. Open Settings → Account & License
2. Click Deactivate
3. Confirm by clicking Deactivate again

Once communication with the server is completed, the activation slot will be released.

# Limitations

• Deactivation is limited to 5 times per year per license.
• The count resets on January 1 (JST).

If the limit is reached, contact support:

https://zen.audio/support

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# Sign Out vs Deactivate

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# 3. USING ZEN AUDIO QUADILA

# 3-1. Overview

The QUADILA interface consists of the following areas:

• Top Panel (Presets)
  Load or save presets.
• Top Panel (Utilities)
  Access settings, tools, and status icons.
• Main Area(Top)
  The horizontal axis represents Hz and the vertical axis represents dB, displaying the parameters of each band.
• Main Area(Bottom)
  Parameter knobs and controls.
• Side Panel
  Vertically layout of parameters.
  Toggle its visibility to click the button in the top-right corner.
• Resizable Window
  Drag the bottom-right corner to resize.

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# 3-2. Knobs & Buttons

# Knobs

Each knob supports the following operations:

• Drag— Adjust the value
• Double-click— Enter a value directly
• Shift+Drag— Adjust the value with finer precision
• Ctrl+click / Command+click— Reset the knob to its default value

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# 3-3. Presets

The following controls are available in the upper-left.

• Preset Name — Displays the name of the current preset.
  If the selected preset has been modified from its original values, a dirty indicator (*) appears at the beginning of the preset name to indicate that the preset has unsaved changes.
• PRESET BROWSER — Opens the preset browser.
• SAVE PRESET — Saves the current parameters as a preset (.zep file).
• ◀ / ▶ (PREVIOUS / NEXT) — Switches to the previous/next preset.

PRESET BROWSER

Displays a list of all presets (factory + user).
Presets are displayed in a list format and can be filtered or sorted by name, author, and favorites.
The available functions are as follows.

SAVE PRESET

Saves the current parameter state as a preset.
You can save a preset by clicking SAVE PRESET in the top panel, or by selecting any preset in the preset browser and clicking Save Preset.

• Preset name: — Enter the name of the preset to save. If the same name as an existing preset is used, it will overwrite that preset.
• Author: — Enter the name of the preset author.

# 3-4. Utilities

The following controls are available in the upper-right.

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# 4. SUPPORT

If you have any questions or inquiries, please contact us using the following links.

• Support: https://zen.audio/support
• Product Page: https://zen.audio/quadila
• Account Portal: https://zen.audio/my-account

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