Antelope x904

Runs natively in your DAW on macOS or Windows.

Silence what you don’t need. Shape what you do.

The X904 Noise Gate is more than just a cleanup tool – it’s a dynamic processor built for engineers who want tight, responsive control over signal flow and transients. With fast detection, advanced envelope shaping, and creative options like sidechaining and PLM (Programmed Latch Mode), X904 adapts seamlessly to technical tasks and creative workflows alike.

Fast, Accurate Gating for Any Source

Eliminate mic bleed, background noise, and unwanted artifacts with precision. Perfect for drums, vocals, guitars, and more—without cutting into the core of the sound.

Programmed Latch Mode (PLM)

Keep tracks fully muted until a defined trigger opens the gate. Ideal for suppressing ambient noise between phrases or building custom automation-style gating behavior.

Sidechain Input for Rhythmic Gating

Trigger the gate with an external source for pulsing, ducking, or rhythmic stutter effects. Great for modern production styles or surgical frequency management.

Detailed Envelope Control

Shape the gate’s response with adjustable attack, hold, and release parameters. Craft tight transients, smooth fades, or dramatic cutoff effects with full control.

Versatile for Cleanup or Creative Use

Use X904 to clean up bleed on drum mics, control room tone on vocals, sculpt bass transients, or create rhythmic gating effects synced to your track’s groove.

X904 is part of the Antelope Cosmos plugin collection.

Native Plugins

Mac:

Apple Mac 2015 or newer, with Intel or Apple Silicon processor

Minimum: Mac OS X 10.14 Mojave (Recommended 11 Big Sur or higher)

Memory (RAM): 8 GB minimum (16 GB or more recommended)

Windows:

Windows 10/11 (64-bit) with latest Microsoft Updates

Memory (RAM): 8 GB minimum (16 GB or more recommended)

CPU: Minimum Intel Core i3™ or AMD Ryzen 1000 (Higher recommended)

Additional:

Stable internet connection is required to download and authorise the plugins.

A free iLok account is required, with iLok Cloud or iLok USB (2^nd gen or higher)

*A physical iLok dongle is NOT required to activate this product