for the ionic pro-6 600ltr a big fat £7300
And don't forget the very expensive (about 95 pound?) colour change DI filter that needs changing more often than it should be.
The main benefit of an Ionic System is, that in my opinion, they fit it extremely well, compared to some of the others (like Facelift) that I have seen. Other than fitting, they are definately no better than many others out there.
From what I read on Brodex - their service after you have bought is virtually non existent

By the look of purefreedom, you will quickly understand all of the parts associated with it, you can buy spares from many internet sites if needed, so you won't be stuck for long if your system fails, as you will easily locate, recieve and replace YOURSELF most components overnite at the latest.