Headphones!!!

[PITTM]

Redrooski,

Unless you have a 200 dollar+ headphone amp you wont be taking full advantage of the 650s. The 650s have a lower impedance and therefore need more power than the 595s, so the 595s are much better out of a portable player or computer sound card.

bozzer,

If you want those headphones, but with some seal to prevent noise from leaking either in or out, try the sennheiser PX200 as it is a sealed version of the PX100. For this same purpose I used to use AKG K27ps.

emil,

GO WAKE UP EMIL!

Also, I know very little about wireless headphones, but everything I have heard indicated that Sennheiser is currently doing the best job. I think they would sound like 10-20% worse.