I did a couple searches with no results. I was wondering what changed in the MB CMD121p combo when they added the Line Out volume knob. I read that they added a pre/post switch for the line out, but did anything else change? I know there has been a bit of a trend to add a compressor in the lower frequency range to better handle power at higher volumes, which in my mind the MB is a perfect canditate. If this was added, is there really a significant change in power handling, or is it something the EQ knob can handle?