my 602 currently drives shahinian obelisks as well as gradient revolutions. i can't really compare the mac with any other ss amp, but i can tell you its smooth tubelike midrange and very musical bass are the most natural i have ever heard. it does compare however to the more powerful arc models. it never uses more than 20 to 25 of its 600 watts to drive the shahinians effortlessly...plus it runs cool and its build quality is unreal. i've used it with both tube and ss pre's and in all cases it was a fine match...onr last thing, my interconnects and speaker wire are nothing more than radio shack variety.
