Need more low end in your mix? Looking to replace a weak or muddy sub-bass?

Sub Generator lets you add or replace low-frequency content directly in your DAW. It’s a free download that works as a standalone sub or a surgical tool for your existing bass.

You can use it to dial in low frequencies on any track, from tightening up a kick drum to adding weight to a vocal. It’s built on an enveloping filter concept—the same one used in Denise’s Noize 2 plugin—giving you dynamic control over how the low end responds to your music.

What Sub Generator Does

This plugin addresses low-end issues in two main ways. You can use it to generate a new, clean sub frequency from scratch, or you can cut the existing sub information in your track and replace it with something tighter and more defined.

It works on any sound or signal in your DAW, not just bass tracks. That means you can run a snare, a vocal, or even a synth pad through it to add low-end body where it’s missing.

Key Controls and Features

Fine-Tuning with the Graph The central graph lets you fine-tune the frequency or note in real time. You can visually set the exact pitch of the sub you want to add or reinforce. Adaptive Mode and Enveloping Turn on Adaptive mode to make the plugin respond dynamically to your incoming audio. The enveloping filter concept means the added low end can follow the dynamics of your source material. Shaping the Low End Use the Rise and Fall controls to adjust the attack and release of the generated sub. This helps it punch through or blend in smoothly. The Side-chain control lets you trigger the sub from a different audio source, and you can cut the existing sub information to make room for the new, tighter low end. Practical Layout The interface is resizable, so you can adjust the GUI to fit your screen or workflow.

Who Should Use Sub Generator

This fits a few specific mixing scenarios. It’s useful if you’re tuning drums and need to add extra sub to a kick or tom. It works when your bassline lacks depth and you need to make it deeper without re-recording. It also helps compensate for distant microphone recordings—like on a drum overhead or a vocal—where the natural low end was lost in the room.

If you often find your tracks are thin or your existing sub frequencies are loose and unclear, this plugin gives you a tool to fix that directly on the channel.

Final Verdict

Grab the Sub Generator free download if you regularly need to add or replace low-frequency content in your mixes. It’s good for surgical tasks like tightening a kick’s sub-bass or adding weight to thin recordings. You get a straightforward set of controls for dialing in the note, shape, and dynamics of the low end.

Since it’s a VST, VST3, AAX, and Audio Units plugin for both macOS and Windows, it will drop into most DAWs. There’s no mentioned limitation, but its value is specific: it’s for fixing or enhancing low end. If that’s a common step in your process, it’s a practical tool to have.