[jslanger]

I'm looking for recommendations for a couple of closed headphones to use as a 'Silent Booth' for a game show. My big concern is an ear-piece that will still block sound if the contestant is wearing glasses. We would be playing music into the headphones. 
 
Thanks.
 
-Jim
 
Edit: These will be used for several people, so I'm looking for an over-the-ear set vs in-ear.
 
Currently my short list is HD280, Extreme Isolation Ex-29, and DT770 (overbudget but worth it?)

 

[anikalsi]

HD280 Pros with HM5 pads would be very good at isolation and at moderate volumes they should block out almost all noise. 
 
That being said, IEMs are the kings of noise isolation and you might want to get those instead, but the problem I can see with those is that the contestant might not insert them completely and would still be able to heard everything quite well, so that's a risk.
 
Also, the DT770s sound fabulous but they really aren't good at isolation so I'd forget about those.