Thanks, great bit of info there really helpful, just checked these out now, i like the senss hd 280 can get them for around 65 from abroad, so they are more suitable than the hd555's ??? 

thanks heard about that,, removing something from the senns upgrades them 

HAHA thanks for your opinion.. i was intending to buy sonys in the first place then found the senns, thinking they might be better, but maybe not for production because of artificial sound???.. dunno they do look nice.....but do need them for production so looks dont matter in my case    is...

I WILL BE USING THESE FOR MUSIC PRODUCTION ON A PC RUNNING THROUGH AN AVERAGE AMP (100W PER CHANNEL) AND A EQ,, HEADPHONES WILL BE CONNECTED TO THE AMP   CAN GET THE SONYS V6 FOR 65 ISH AND THE SENNS 555 ARE 75 POUNDS BUT ARE GRADE C WHICH MEANS THEY HAVE BEEN REFURBISHED BY THE MANUFACTURER...