Yeah, just compared them quickly coz honestly I'm not listening to vc02 at all. So nothing too detailed - just quick comparison based on few soings.
As I already said due to its form factor the Vc02 has the better isolation but needs deeper insertion to sound its best which leads to the first issue - the detachable cable. While I personally am very careful when taking the vc02 out of my ears I have to admit that I always worry that the cables will detach and the housings will remain in my ears, which is something that some users have experienced.(Actually scratch that, coz it did just happen while I was going quickly between the VSD1S and the VC02). As far as sound, it didn't take me much to remember why initially I wasn't very impressed with the vc02 even before VSD1/S came out in comparison the the gr04 flagship. The vc02 is relatively hard to drive despite its low impedance. In that regard I think it sounds better amped but then comes the second issue - power handling. While VSD1/S can take a huge amount of power without even sweating, so you can push it really really loud even with bass boost on, the vc02 will start to distort and even more if you use bass boost. That's not a major issue per se if you don't like to listen to music at higher volume but I do occasionally like it louder and it's hard not to notice.
Vc02 has a pretty good bass - flat, tight and punchy even though not much in quantity. In comparison VSD1S has more bass with more of a mid-bass punch and is a touch slower while VSD1S is better in that regard with flatter bass and harder impact, which easily beats the vc02's bass IMO even though slightly lacking in texture compared to it. The mids of VC02 and VSD1/S are very good with VSD1/S's being a touch laid back and slightly warmer and fuller in comparison to the more balanced vc02 . Detail is pretty good on both with the vc02 having a bit better clarity due to its more neutral presentation but the slightly warmer VSD1/S has better timbre and for me sounds more effortless overall with better layering. Treble-wise the VSD1S is the clear winner for me by a margin. Even the VSD1, which is slightly drier in that region and slightly more prone to sibilance is something I would pick any day over the vc02, which is dry, grainy and a bit peacky and has a strange dip in the lower treble, which makes female vocals sound really artificial to me.
So as I've said many times, the vc02 is a pretty decent iem but I've never really liked it that much. For me VSD1S is the clear winner overall.
edit: Now when I think about it, it didn't turn out as quick, short and not very detailed as I originally intended. LOL
Edited by kova4a - 9/30/13 at 1:55pm