Spendor Sp200 speakers users

Hi all-- any owners here at the Gon ? May be able to pick up a pair at a ok price. My big concern is listening at lower volume-will the speakers still show the mids/highs and lows. Or do you have to get on the volume dial for them to show there stuff??I use a Mark Levinson 526 pre-Mark Levinson 532h amp or Luxman m600a amp or Carver Crimson 275 tube amp-- thoughts please --thanks