Denise Audio Bass XXL v1.0.0 (Win/macOS)

Create 'Brainwashing' Bass
Bass XXL makes use of a proprietary algorithm designed to supersize the low end. The plugin accomplishes this by generating additional harmonics that are actually above the bass frequency you want to enhance.
This concept takes advantage of a psychoacoustic phenomenon that causes our brains to interpret sub bass audio largely based on its harmonics more so than the lowest sounds being produced. Even in the absence of sub bass frequencies, we fill in the blanks and perceive the bass as long as the proper harmonics are present.
With so many of today's earbuds and small speakers unable to generate satisfying low end, Bass XXL comes to the rescue by enhancing your bass with fat and beefy harmonics that can be felt and heard.
Home Page-

https://www.deniseaudio.com/plugins/bass-xxl