I have McIntosh c1000 with MC2102. Stealth Indra between Bel Canto PL1 and Mac. Results are extraordinary. Excels at clean highs, deep and defined low end and liquid midrange. Extends soundstage immeasurably. I have found that the most important IC is between the source and pre. Additional Indra IC between amp and pre provides v good results, but nothing like the initial run between cd and pre. Can get away with Indra at source and, say GS 50-50, between pre and amp. Indra is comparable to Nordost Valhalla in its speed and microdynamics, but much better texture, color and bloom. Only caution----if system is bright (which Mac equipment is not) the Indra will be relentless.
In short,Indra's impact in a Mac system will be immediate and completely salutary. Mac staff will tell you cables don't matter that much. They would not say that if they heard their equipment with the Indra