Yesterday I upgraded the software of my AVR300 from 2.67 to 3.16, a major leap, to be sure. On the ride, I also upgraded the DSP to 1.12 first, as recommended. When listening I notice 2 changes that are probably affected by the DSP upgrade: 1. The volume seems louder on the same setting. Before I usually preferred a setting of 65-70dB when watching normal television, but after the upgrade even 60dB seems loud, and I find myself watching with the volume on 55dB. I think this is an improvement, since I sometimes during serious loudspeker testing found that I was close to the limit of the volume level setting. 2. When using a stereo source, wether it is analog or stereo PCM, I find the high frequencies a bit more stressed and even a little less detailed. This does not occur when I turn on Stereo Direct, which is definately more balanced (and should run without the DSP). I use Tone bypass. I will test with more material, but I am not sure if DSP 1.12 is an improvement in all departments... Any other experiences with sound changes when upgrading the DSP?