Hi, Ive been pulling hair out trying to decide between the Usher S-520 or Usher V601 and also the Opera mezza, cant get to demo them together i haven't listened to any of them yet . My system is Icon Audio Stereo 40MK valve amp Arcam alpha 6 ( old but i like it) Arcam Rdac Pure i20 ipod dock Mission 780se speakers My room size is only 7ft -12ft decided to use the spare room for my listening Please could anybody out give any advice on, or personal experience with any of the speakers . I like most genre of music . Luke