I have used the Eurorack MX-602A for the past five years, and have been very happy with it. I did finally "outgrow" it (as too my PSR550 and Radio Shack amp), and recently bought a Behringer Eurorack Pro RX1202FX and Europower EP1500 amp to use with my Tyros 2.
I also have a couple of Behringer mics, a pair of Truth B2031A active monitors, and the Truth B2092A active subwoofer. I'm a real believer in Behringer products, and am proud to admit it. A lot of Bang for the Buck!
If you have specific questions, I'll be happy to answer them if I can.
Regarding my experience with the MX-602A, the claim of ultra-low noise is true. There were times, though, that I wished I had more inputs. I believe I satisfied that need with the RX1202FX.
Charles
[This message has been edited by cwalkeralso (edited 01-02-2007).]