My 1068 is a Pro only not a reciever but I did use pre outs on an Onkyo I owned prior, the sound wasnt vastly better and I quickly fihured that a seperate preamp/processor was in order...........and it was a big step up in performance. The Rotel (reciever or Processor) have cross over settings of 20,40,60,80,100hz plus bass and treble controls for each channel (agreat feature) you can also have seperate settings for dolby and stereo 2 channel and you SACD inputs.....it is very flexible!