The question is raised from time to time about headsets that
offer decent isolation, with good quality audio for private listening.
I use David Clark H100DC listen only aviation headphones, both
for my private listening, and in field production work. With
excellent results. Though this model is discontinued, Clark has
introduced a new model offering high isolation, with 10-20000 hz
audio. Compatible with mono or stereo headphone jack wiring, in
large or small sizes.
The new model is David Clark 10S DC.
Typical high Clark quality. Typical high Clark performance. 23
db of isolation.
Find it at the link below.
http://www.davidclark.com/HeadsetPgs/model10Sdc.htm