Hi, I've just found this board and am posting because I need some help. My old headphones are falling apart and I don't know which to replace them with, although I do know the specifications I need, please can you advise me. I would prefer closed back circum-aural headphones but they must be comfortable and go down as far as 5Hz - I am using binaural beat meditation CDs and this is the requirement they suggest. My budget is limited, up to £30-40 but I don't mind second hand. I was thinking of Sennheiser HD280 (from Ebay) but then realised they only go down to 8Hz. Other options are Technics RP-DJ1200or 1210 or Sony MDR V700DJ but I haven't read many reviews about either and would appreciate your opinions.