AmpKnob S_Zero 100 by Bogren Digital guitar amp simulator plugin interface

AmpKnob S_Zero 100: One-Knob Tube Amp Simulator by Bogren Digital

Rated 4.8/5 on Plugin Boutique (11 ratings)

AmpKnob S_Zero 100 is a guitar amp simulator plugin by Bogren Digital that models a three-channel tube amp and is controlled with one gain knob and one pedal switch.

VST3AUAAXStandaloneWindowsmacOS
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01Overview

AmpKnob S_Zero 100 is built around a simple idea: get boutique tube amp tones without spending time on settings. Its modeled amp covers clean, overdriven and high-gain sounds from a single gain knob, with a pedal switch that adds an overdrive in front of the amp. Bogren Digital says the sound was designed to work from the moment the plugin loads, so guitarists can focus on playing parts and solos. The plugin runs as VST3, AU, AAX and standalone on Windows and macOS.

Best for

  • Clean to crunch guitar tones
  • High-gain lead guitar
  • Quick guitar tracking
  • Riff idea capture
  • Impulse response loading
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02Key features

What you get

  • Single gain knob covering three amp channels
  • Pedal switch adds an overdrive before the amp
  • Two cabinet impulse responses: Vintage and Modern
  • Proprietary IRDX technology built in
  • Loads any impulse response and applies IRDX processing
  • Standalone version with tuner, metronome and riff recorder
  • Available in VST3, AU and AAX formats
  • Runs on Windows 10 and macOS 10.13 or newer
03In depth

Sound, Channels and Controls

The original amp is a three-channel design, and this plugin maps those channels to the gain range. Low gain settings give a clean, sparkly tone that moves into a deeper overdrive. Raising the gain shifts to a more organic tube crunch, and high gain reaches a louder, clearer lead sound.

The pedal switch places an overdrive pedal before the amp and changes the character of the sound. Because the interface is one knob and one switch, the plugin is quick to dial in and suits players who prefer not to browse menus.

Bogren Digital describes it as the most versatile of its AmpKnob plugins, despite the simple layout.

Cabinets, IRDX and Standalone Use

AmpKnob S_Zero 100 includes two speaker cabinet impulse responses, labeled Vintage and Modern. The developer's proprietary IRDX technology is built in. According to Bogren Digital, IRDX recreates the non-linear behavior of real guitar speakers that is usually lost when capturing cabinet impulse responses. Any impulse response can be loaded into the plugin and receives the same IRDX processing.

A standalone version is included. It has a tuner, a metronome and a riff recorder, which lets you capture ideas without opening your DAW.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

DeveloperBogren Digital
TypePlugin
CategoryAmp Simulator
FormatsVST3, AU, AAX, Standalone
Operating systemsWindows, macOS
05FAQ

Questions, answered

What is AmpKnob S_Zero 100?

It is a guitar amp simulator plugin by Bogren Digital, modeled on a three-channel tube amp and controlled with one gain knob and one pedal switch.

Which formats and operating systems does it support?

AmpKnob S_Zero 100 is available in VST3, AU, AAX and Standalone formats. It runs on Windows 10 or newer and macOS 10.13 or newer, with Intel and Apple Silicon support on macOS.

What do I need to use AmpKnob S_Zero 100?

You need a DAW that can load third-party plugins through VST3, Audio Units or AAX. The developer lists Reaper, Logic, Cubase, Pro Tools, Studio One and Luna among compatible hosts. The standalone version runs without a DAW.

07Developer

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