Downloading FireBoxMixer 1.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The software lies within Audio & Video Tools, more precisely Music Production.
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. This free Mac app is an intellectual property of PreSonus Audio Electronics,.
From the developer:
The FireBox is the most powerful 24-bit/96k FireWire recording interface that fits in the palm of your hand. The FireBox is a complete 24-Bit/96k personal recording studio combining two high quality PreSonus microphone/instrument preamplifiers and 24-Bit/96k sample rate.
You may want to check out more software for Mac, such as V-Synth Librarian or Mandala Virtual Brain, which might be related to FireBoxMixer.