Originally Posted by brandon77
Why would this have made such a difference I wonder?
I hate to repeat myself, but: " I recently got a 205 and the volume scale was incorrectly calibrated from the factory. On a scale for 0 to 100 it was almost dead silent form 0 to 30 and fairly soft from there upwards. I installed the latest firmware and now the scale works largely as you would expect. "
This is a calibration issue. Your Oppo has not become more powerful. The numbers on the scale simply have a different meaning now than they did previously.
It saddens me that consumers generally seem to have a low understanding of this issue. They will for example think that music A sounds better than music B, simply because music A is compressed and sounds louder than music B for a given volume setting. This has led to the so called "loudness wars" that have resulted in an endless stream of recordings that in my opinion compressed and dynamically dead.
Many will think that amplifier A is more powerful than amplifier B, simply because it sounds louder when the volume control is set to a given point, say 9 o'clock. The fact is that the opposite may very well be true.
Finally, source components that sound louder for a given volume setting are often thought to be more powerful/better sounding than components that are not as loud at a given point. This has led to an inflation in the so called line level (standard voltage output at 0dB), sometimes to the extent that a source component is set to produce such a high voltage that there is a risk of it overloading downstream components.
How can you avoid being fooled by all this? When comparing components, just set each them to a level you like to listen to. Ignore where that happens to be on some volume scale.
I still think your installer is incompetent, Brandon. If he did not get this, what else does he not get?