Overview

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Polishing your mix’s low end can be tricky. Bass DI tracks can sound mushy, and kick tracks can lose their “pop.” Sometimes everything below 100Hz can become such an undifferentiated soup of noise that you just don’t know where to start! Start here: The bx_subfilter is just the ticket for adding clarity and definition to tracks that have troublesome low frequencies. There are lots of expensive and complicated EQ plugins out there, but when it comes to shaping your low end, the bx_subfilter is unique for its ease and simplicity. With just a few quick adjustments to its four-knob interface, you can breathe new life into those 808s that have been muddying your mix.

The bx_subfilter 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. If you think that cleaning up your low end shouldn’t break the bank or require twenty knobs, we’ve got a plugin for you.

Sign up at Plugin Alliance today and you’ll get instant access to the bx_subfilter, along with our five other free plugins. No dongles, no hassles, and no payment required!

Features

  • 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

Audio Examples

Industry Reviews

  • Thomas Gold

    Thomas Gold

    Producer/DJ (Armada, Axtone, Protocol, Revealed)

    The bx_subfilter is a nice and handy tool to beef up your low end -- super simple but effective. I just used it to give a bit more oomph to one of my ongoing projects. No brainer!

  • Lee Slater

    Lee Slater

    Producer/Mixer/Engineer (Emeli Sande, Roots Manuva, Lana del Rey)

    Taken from the awesome bx_subsynth this cheeky little bottom end exciter really enhances the subs in what ever you stick it on! You'll have your neighbours complaining in no time.

  • James Wiltshire

    James Wiltshire

    Producer (Freemasons, F9 Audio)

    This feels like a van load of extra sound just turned up at your mix and added an extra octave. Brainworx -- worrying bassbins since 2017.

Customer Reviews

  • subsynth

    ★★★★★
    by jp
    5 stars
  • productor

    ★★★★★
    by themixeer
    muchas gracias
  • Plugin

    ★★★★★
    by Millo
    Really good
  • Increíble Magnifico plugins

    ★★★★★
    by Puchito777
    Esto se merece más de 10 estrellas por lo magnifico que es
  • error

    ★★★★★
    by gabriel
    no me reconoce el plugin fl studio

Specifications

Supported Plugin Formats
AAX DSP, AAX Native, AU, AAX AudioSuite, VST2, VST3

Supported Operating Systems
macOS 15 down to macOS 12
Windows 11 down to Windows 10

Mac
Intel, or Apple Silicon

PC
x64-compatible CPU

System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM

Downloads

ChangeLog

bx_subfilter

Brainworx bx_subfilter - Changelog

Version 1.9.1 (Oct 9, 2023)
- General: fixed CPU spikes on Mac OS

Version 1.9.0 (Aug 15, 2023)
- General: added native Apple Silicon compatibility for AAX
- General: added macOS Ventura support
- General: improved plugin loading time in the DAW
- General: fixed issue causing Logic to crash when closing the plugin UI
- General: improved font drawing behavior

Version 1.8 (Mar 15, 2022)
- General: added native Apple Silicon compatibility for VST3, VST2 and AU
- General: added macOS Monterey support
- General: added Windows 11 and Windows 10 21H1 support
- General: discontinued Windows 7 support
- General: discontinued macOS 10.9 and 10.11 support
- General: fixed metering behavior in block sizes of 2048 samples and higher

Version 1.7 (Mar 22, 2021)
- General: Compatibility with Logic on Apple Silicon devices via the Rosetta-2 layer
- General: Fixed possible artefacts when freezing or bouncing tracks in Pro Tools
- General: Fixed automation highlighting disappearing in Studio One
- General: Improved license dialog visibility in dark mode

Version 1.6 (May 27, 2020)
- General: Qualified for use with the Windows 10 May 2020 Update
- General: VST3: Fixed potential hangs in a DAW upon loading
- General: Fixed logical issues in undo / redo behavior
- General: Fixed UI resizing issues in Ableton Live on Windows
- General: Fixed audio processing initialization issues on amp and delay products

Version 1.5 (Nov 06, 2019)
- General: Qualified for use with macOS 10.15 Catalina
- General: Qualified for use with Windows 10 November 2019 Update
- General: Fixed plugin validation in Logic under macOS Catalina
- General: Fixed preset name restore in Logic when reopening a session
- General: Fixed opening authorization dialog triggering automation
- General: Improved instantiation times for plugins
- General: Improved license functionality and branding for subscription
- General: Removed 32-bit support on macOS and Windows

Version 1.4 (Jul 10, 2019)
- General: macOS 10.14.5 Update compatibility
- General: Windows 10 1903 Update compatibility
- General: Fixed activation issue in Windows hosts set to non-English language (e.g. Cakewalk)
- General: AU: Fixed issue with increased CPU and memory on reopening UI
- General: VST3: Fixed issue with adapting to host knob mode, and now prioritizing linear
- General: VST3: Fixed issue with VST3 preset permissions
- General: VST3: Improved synchronization between parameter states and some UI functions, e.g. toolbar reset


Version 1.3 (Nov 16, 2018)
- General: macOS Mojave compatibility
- General: Windows October 2018 update compatibility
- General: adding Windows High DPI support for VST2/3 plugins
- General: Fixed potential crashes in Cubase and other VST2 / VST3 DAWs
- General: Fixed potential CPU spikes and audio dropouts
- General: Fixed rendering in Pro Tools on the start of a session
- General: Fixed missing presets in Wavelab and other VST3 DAWs
- General: Improving keyboard control, fixing issues with catched keys preventing it from passing through to DAW
- General: Fixed parallel use of host sessions (e.g. with Live)

Version 1.2 (May 24, 2018)
- General: Microsoft Windows Redstone 4 compatibility
- General: Added computer keyboard control for plugin parameters
- General: Fixed Mouse scroll wheel not working in Windows 8
- General: Fixed an issue where plugins will not validate or load after a certain amount of plugins have been loaded (Windows)
- General: Fixed visual GUI freezes when adjusting DAW parameters, meters, analyzers (Mac)
- General: Fixed possible issue with Pick Pack licenses
- General: Small licenser stability fix

Version 1.1 (Oct 23, 2017)
- General: Mac OS High Sierra compatibility
- General: Fixed possible crash on online activation (Mac OS High Sierra)
- General: Fixed Logic Pro X not validating AU plugins (Mac OS High Sierra)
- General: Fixed CPU spikes and crashes with Cubase (Windows)
- General: Fixed bug that could lead to "AAE -6 error" in ProTools (Windows)
- General: Fixed crash with FL Studio
- General: Fixed crash when cross-opening plugins in various hosts
- General: Fixed crash when using mixdown in Audition
- General: Fixed crash in Final Cut Pro
- General: Fixed delayed parameter handling and crackling issues in Cubase with VST3
- General: Fixed bug where plugin settings were not saved in Harrison Mixbus
- General: Fixed bug that led to AAE error -9317 in ProTools when instantiating plugin
- General: Fixed bug where plugins did not render properly when "x ray" option is enabled in Sonar
- General: Modifications to factory presets were lost when reopening session
- General: Fixed mouse wheel behaviour with second monitor setup (Windows)
- Some plugins: Value labels do not appear every time when clicking on parameter in UI
- General: Faster instantiation time for plugins (Windows)
- General: Adding support for automation highlighting in Presonus StudioOne
- Fixed plugin flipping phase of any audio
- Fixed metering issue when loading as AU

Version 1.0 (Apr 10, 2017)
- Release version