Rax is the ideal tool to quickly record AudioUnit effects and instruments. The GUI is well organized with the top part dedicated to effects, the middle one composed of all 16 channels and the bottom section saved for instruments. Buttons at the top of the interface let you record sounds easily. Despite the fact that the trial offers a fairly limited amount of effects we liked how intuitive it felt to drag and add new effects in Rax. What's more, the application has built-in MIDI options, which are absolutely necessary in any self-respecting music application.
We also liked how you can easily save presets and label modules with one of the 15 icons available. The stepper is also a very handy tool to listen to presets. Overall, while not the most advanced music program, Rax offers a friendly interface which wraps all the necessary features to record and tweak your sounds.