First of all, sorry if Ive got the wrong forum. Speakers seemed about the closes to headphones/ear speakers. I recently got a bonus and am considering buying a pair of Stax SR-007 headphones/ear speakers probably with the SRM-717 driver unit, but I dont really know much about audio equipment. I just want to buy something decent so I know Im enjoying sound to the fullest and hopefully it wont have to be replaced for a while. After reading around Ive got a few (4) questions and concerns. Id be extremely grateful for any advice you could offer. My biggest concern is the 6-41,000Hz frequency response of the Omega IIs. While the driver unit would give the full range of sound for SACD (100KHz) and DVD Audio (96KHz) the headphones would not. With products available like the Panasonic Technics RP-FDA100/RP-HDA100 with a frequency response of 3-100,000Hz and SACD becoming fairly commonplace, its looking like the Omega IIs are a bit of a waste of money. What Im wondering is if Ive interpreted this information completely wrong, or am Ive got it right and you need headphones with a frequency response up to 100KHz to get the most out of SACD? Ill mainly be using the headphones for watching DVDs and listening to CDs and SACDs. The SRM-717 seems to be the appropriate driver until for this, but I was wondering if theres any reason I should consider the SRM-007t? I was going to get them from Japan because looking at the UK prices itll work out cheaper that way. Can you use a UK to US power transformer or do you need a different one for Japanese equipment. Ive got the SC5329 200VA UK to US autotransformer here http://www.roshepower.co.uk/p6a.htm and was wondering if I could use that? Finally Im a bit concerned about the comfort of the headphones. I currently have a pair of HD600s and a pair of HD590s. I never use the HD600s because theyre a circular shape that you have to stretch over your head, so they apply a lot of pressure around the ears. In addition, the head band cushion and ear cushions are very firm, so its about as comfortable as having your head crushed between two rocks. The HD590s have nice soft cushions and are a U shape that fits comfortably over my head, applying no pressure around the ears, so, despite the inferior sound, I always use them. I was just wondering if anyone had tried the Omega IIs and could offer an opinion on how much pressure it applies to your head in comparison the HD600s and HD590s. Im rather concerned that they seem to be shaped like the HD600s and are going to cause me discomfort. Also, Id be very interested to know how hard the ear cushions are compared to the HD600s. I really dont want to spend all that money only to have them become an ornament like the HD600s. Sorry to go on a bit and ask so much. I just dont want to buy them and be disappointed so I thought I best clear a few things up before ordering. Any advice about any of the four issues would be very much appreciated. Thanks a lot.