Hi,
I have 10.4 too and have Fuzz Measure working: 2.0.11.
I am assuming you are wanting to measure the frequency response of speakers?
If so there is also smaart (by EAW) or 'Electroacoustics Toolbox' by Faber acoustical.
It all depends what and where you are measuring. If there will be background noise and no time variance I would recommend MLS techniques, but I don't know of any mac softwares that would do that... Not too hard to code though, sync of the overall system would be the main issue
Hope this helps ;D