Free Plugin: Brainworx bx subfilter

What’s good everyone?  I have a free plugin for you and it is going to help you clean up your low end.  The plugin is the bx subfilter and it is a free plugin that borrows from the “Filter” section of its larger counterpart, the bx_subsynth. It’s the perfect plugin for anyone who loves the bx_subsynth’s unique approach to low-end filtering, but doesn’t need the subharmonic synthesis.


  • Tight Punch knob implements a resonant high pass filter that’s especially formulated for cutting problem frequencies in bass-heavy tracks
  • Resonance selector applies three peak settings to the filter – Low, High and Extreme – for accentuating punch while taming low-end rumble
  • Low End control applies a post-Tight Punch fixed bandpass filter, to achieve that perfect frequency balance
  • Input/output gain controls for level matching and preventing clipping

The bx subfilter is a great plugin for cleaning and tightening up your low end.  It works really well on low end heavy instruments like 808s, bass guitar, synth bass, and kick drums.  This plugin also doesn’t just filter out frequencies, but it can also add a bit of low end punch.  The bx subfilter is a very simple and easy to use plugin that will help add clarity and definition to your tracks.

You will need to register for a free account from Plugin Alliance in order to download this plugin.  So go on ahead and download it, try it out, and let me know what you think!

And if you’re looking for more free plugins check out this previous blog post: Five Fantastic Free Plugins.

Free Plugin: Brainworx bx subfilter


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