There was a download of bx_boom! 1.4.4 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. Bx_boom! lies within Multimedia Tools, more precisely Music Production.
We recommend checking the downloaded files with any free antivirus. You can launch bx_boom! on Windows XP/Vista/7/8/10/11 32 and 64-bit. The software can also be called "bxboom". The actual developer of the software is Brainworx. The most popular versions among bx_boom! users are 1.4 and 1.2.
From the developer:
bxboom is a plug-in EQ with M/S features. Stripped down to only 2 parameters and an intuitive graphic design. These tools enable you to tune, attenuate or boost the impact of your bass drum sound, even in a final mix or a complete stereo drum-loop. This is a very easy and great sounding EQ for your bass-drum insert.
You may want to check out more software, such as Jupiter-8V, Psycle or OtsDJ, which might be similar to bx_boom!.