A specialized noise gate plugin for high-gain guitar and bass, removing hiss and feedback while preserving tone, sustain, and playing dynamics.

Purpose and Design
SMG Cockblocker is crafted specifically for high-gain guitar and bass rigs, targeting unwanted hiss, hum, and feedback. Unlike general noise reducers, it focuses on metal, hard rock, and hardcore genres, where distortion is extreme and relentless. The plugin’s intelligent algorithm monitors your playing dynamics, ensuring that loud riffs remain powerful and crushing.
The design prioritizes preserving sharp attack and robust sustain, avoiding the ‘choked’ effect common with standard gates. It reacts instantly to stop noise when you stop playing, while keeping the natural feel of your performance. This approach means you can push your gear to the edge without sacrificing tone clarity, making it a specialized tool for demanding guitarists.
Splitter Technology
The Splitter feature is a core innovation that separates the noisy portion of the signal from the clean guitar or bass tone. Instead of gating the entire signal, it isolates and handles the noise independently. This results in transparent gating with fewer artifacts, keeping palm-mutes tight and leads ringing out naturally.
By processing the gate and amp signals separately, the plugin accurately ‘hears’ your performance and reacts to dynamic changes without over-clamping. This prevents unwanted dulling of attack and premature chopping of note tails. The result is a more natural feel, essential for high-gain musicians who need precision and clarity in their sound.
Sidechain Flexibility
The back panel offers sidechain capability, allowing a clean DI signal to be fed to the gate. This lets the plugin ‘listen’ to your raw playing before the amp adds high-gain saturation, improving accuracy in locking out hiss and feedback. The gate reacts more precisely to your true notes, even under extreme distortion.
A Key Listen feature enables you to audition the sidechain signal, hearing exactly what the gate hears. This simplifies setting thresholds to achieve desired sustain without choking the tone. These controls make setup straightforward, minimizing guesswork and letting you focus on your performance rather than technical tweaking.
Recording Workflow
Cockblocker streamlines recording sessions by quickly cleaning your signal, so you can capture pro-level tones without wasting time on complex parameters. It’s built for fast-paced environments, ensuring your recorded sound is tight and free from ambient noise, allowing you to record more efficiently.
Compared to generic gates or large noise-reduction suites, this plugin is more precise and affordable, offering a simplified interface without convoluted menus. It zeroes in on the demands of high-gain instruments, helping you achieve a polished, aggressive tone. You save time in the studio and avoid fighting background noise, letting your performance shine.
Key features
- Specialized for high-gain guitar and bass
- Intelligent dynamics monitoring algorithm
- Splitter technology for transparent gating
- Sidechain input for clean DI signal
- Key Listen for auditioning sidechain
- Simple, fast setup with intuitive controls
Best for
Guitarists and bassists in metal, hard rock, and hardcore genres using high-gain rigs who need a noise gate that preserves tone and sustain. Ideal for recording sessions requiring quick, clean signal capture without complex adjustments, or for those tired of fighting hum and feedback.