Abecollins, I just came back from a Business trip(stranded in Houston)and here is my reply: The fact that I have still kept CP-45 after aquiring SSP-50, simply CP-45 is much better in musical and lifelike presentation package. SSP-50 in comparision (two channel stereo balance mode for both)has a lot less blacker background, partly due to a some what extended higher freq response, and diminished guitar and piano reproductions ( although a lot smoother than CP-45) but with a little better soundsatge depth. Overall result simply is NOT musical and lifelike for MY system. For watching movies and TV in stereo surround and or DTS/Dolby digital, the SSP-50 does perform exceptionally.