Our website provides a free download of FabFilter One 3.23 for Mac. FabFilter One for Mac is included in Audio & Video Tools. This Mac application is an intellectual property of FabFilter.
From the developer:
For FabFilter One , we have put tremendous effort in creating the best cut-off filter ever. Our new design approach has resulted in the fattest and smoothest self-oscillating digital filter you have ever heard. It has been tuned carefully to achieve the character and warmth of a classic analog synthesizer. FabFilter One
You may want to check out more Mac applications, such as FabFilter Twin 2, which might be related to FabFilter One.