From my know-how, if I may suggest something, go for Sennheiser HD 25 - you could choose from following versions of this great passive phones:
HD 25-1 II - 70 Ohms, 1.5m steel cable with rt.angled 3.5mm mini-jack and screw-on adaptor to 1/4" jack. These come with leatherette *and* velour earpads and a drawstring carry bag.
HD 25-1 II Special Edition - 70 Ohms, 1.5m cable with rt.angled 3.5mm mini-jack and screw-on adaptor to 1/4" jack. These come with only leatherette earpads and a nice zip case. These are no longer available as far as I am aware.
HD 25 II - 70 Ohms, 2m steel cable with straight 3.5mm mini-jack and screw-on adaptor to 1/4" jack.
HD 25-C II - 70 Ohms, 2/3m coiled coiled cable with straight 3.5mm mini-jack and screw-on adaptor to 1/4" jack.
HD 25-13 II - 600 Ohms, 3m steel cable with straight 3.5mm mini-jack and screw-on adaptor to 1/4" jack.
HD 25-SP II - Lower quality version without the split headband, 60 Ohms, 3m cable with straight 3.5mm mini-jack and screw-on adaptor to 1/4" jack.
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- quotation from
http://forums.dvdoctor.net/showthread.php?t=50863
I own
HD 25-C II, and their capability of noise-canceling is huge (for passive canceling), besides that, there´s something more in packet - amazing sound, clean and correct. I could said that noise-canceling of this babies is around 30 dB - IMO, just on your ears, without sound in them. So, when you turn on your sound....it´s massive.