I guess the bit I'm puzzled about (semi-closed / vented Grados) is "what is the point"?
Let's face it - the main reason for using closed headphones is for isolation - it's pretty much the only reason. These are on-ear - not over-ear. On-ear isolating headphones need reasonable clamp. These are Grados! I don't know about you guys - but every Grado I've owned - including the RS1's I have now - I always bend the headband slightly to relax the fit (otherwise .... torture!)
So thinking out loud .....
- Closed Grado that's on ear - so you need to loosen fit
- Vented anyway
- Likely to be very little isolation (for you), and although leakage may be attenuated, it won't be nil
- Priced at $400?
My question again - why would you bother?
I was also naturally interested when I first saw the news - then when I thought about it - reality kind of hit home.
I'll stick to my RS1s.