Download of MStereoExpander 9.01 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 is included in Audio & Video Tools.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular version among MStereoExpander for Mac users is 2.0. The actual developer of this software for Mac is Melda Production.
From the developer:
MStereoExpander offers expansion based on either actual sample or delay, and provides stereo field modification to increase or reduce the clarity of the spatial differences between channels.