I purchase this system after read good review . when I set up this system I immediately notice lack of TREBLE . the system do not let you adjust treble , mid-range & base but it have pre-set sound such as Rock , Pop & so on ... I try all the preset but could not get any crisp treble from any of the setting . I try it with dvd , CD and the radio but there just be not enough treble but just dull sound as if you be listen to stereo system make in the '70 . I be return this system for either jvc or Panasonic . this be the last Sony I buy as far as home theater go . I be extremely disappointed .