Hi all.
I have been lurking around this thread for quite some time, and finally decided to take the plunge and bought the RS 220 today.
As for my history, I have been using a custom IEM by JH audio (JH11) for about 2 years now, so I suppose I can only compare the SQ between the RS 220 and the custom IEMs. I am not an absolute audiophile, so don't take my words!
Of course, the IEMs cost a lot more and is made to fit my ears, but I have to say, for now, having listened to the RS 220 for about 20 minutes, the experience has been great (especially since this is wireless).
I have always wanted to get some over ear headphones, and came across with the RS 180. So many people have said good things about it, so just when I was about to purchase it, I saw this thread, and knew about the RS 220. I thought it would be quite stupid, if I were to go for the RS 180 now, since I am prepared to pay the extra for a newer, more stylish, and possibly better wireless headphones.
I was indeed very worried, that it will have micro drop-outs like some members here have been experiencing. I have literally just opened the box and tried them on (the battery seems to be a bit charged, not completely empty). I couldn't wait until it is fully charged before trying it.
So far, no micro drop-outs AT ALL. The bass, for me, is more than enough. It is crisp, solid, and tight. Comparing it to the JH11, which has duo drivers for the bass department, I have to say that it obviously does not match up to it, but I am really impressed by it, giving that it is wireless too.
Mids and trebles are fine, too, but I think they do need some burning in before I can comment on it in detail.
I have never used/tried any Sennheiser over-head earphones, so I cannot compare it to say, the HD 600/650.
On a side note, while I went to the shop today, I saw a HD 800 and I tried it on for about 10-15 minutes. Of course, that costs a fortune, and is supposed to be one of the best headphones out there. I feel that both RS 220 and the HD 800 feel very comfortable around my head, and that the SQ, bass, mids, trebles and the soundstage of the HD 800, to be honest, is almost equal to my custom IEM (maybe because I don't have a very sensitive ear?). But I really do not think HD 800 is worth its asking price.
As some members have said before, these cans do its job so far. I finally understand why Jude says these headphones are the ones that he will recommend as a primary headphones, they are really 'that good', especially when it is wireless too!
Cheers.