Thanks, Donmich. I appreciate your kind words!
Anyway, there are some comparisons between the two products and I see that you've found one already.
Our RS 170 / RS 180 have been well-received and I hope to see more reviews of the RS 220 very soon!
I have followed your posts thru the whole forum...congratulations for your wise advices!
Do you know any comparison between the Sony 6500 and even the Senn RS170/180 or the 220??
How could be possible that in the whole internet I can't find someone who have conducted such comparison??