Download of TAC-2 MixEfx 2.2.0.61 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software belongs to System Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. This free Mac application was originally created by Zoom Corporation.
From the developer:
TAC-2 MixEfx is a mix application designed specifically for the ZOOM, TAC-2 and TAC-2R. Using a computer, you can make settings for the built-in mixer and for the high-quality monitoring effects. Functions include LO CUT, PHASE reversal and AUTO GAIN, which automatically detects input signal levels.
You may want to check out more software for Mac, such as Missing Sync for Palm Pre, PSPWare or FourEyes3D, which might be similar to TAC-2 MixEfx.
Music Production