Hi Günter...I haven't got a Allesandro ms1 but a Grado SR60i. Which I bought locally at a dealer. Both head phones look exactly the same but I can't tell the difference in sound quality as I never used the ms-1.
If you want to know more maybe the following thread can help you
http://www.head-fi.org/t/245510/diff...sr80s-and-ms1s