Glad I can help. There are a few additional pieces of software as well. Some are free and some are not. I don't rank them as high as LEDSA though. For future reference, if you ever needed a hardware analyzer, you can pick one up for dirt cheap here.
http://www.technicalhifi.com/cats.php?cat=63
Accurate and pretty and you can't beat the price. There a few more nice ones. Some plugin and some Not. I haven't tried them. If you do, please let me know what works and what doesn't.
http://www.macmusic.org/software/cat.php/lang/en/id/7033/
Also, if you use a Pro App like Soundtrack Pro, Logic, Digital Performer; you can use Voxengo. It's free. You only have to register it through email. Very effective, accurate and pretty.
http://www.voxengo.com/
You drag the ".component" files into:
Library/Audio/Plug-ins/Components
and the ".vst" files into:
Library/Audio/Plug-ins/VST
I have tried them in Soundtrack Pro, Digital Performer and Logic Studio. You should see the plugins inside your app. If not, just re-scan. It's so, so nice. Take care.