I find encoding with the .aac saves about 1 Mb / minute @ 192kbps -but don't really hear or see much of a difference below 92kbps. It seems 192 is a bit overkill for the Pearl and the factory headphones.
I'm going to try a test with three styles of music (classical, rock, and some ambient-pad styles) to test dynamic ranges tonight. I plan on encoding the files from .cda to pure .wav at a few sample rates -still want to see if I can hear a difference between the 22KHz & 24KHz sample rates. I know mathematically there is a difference. For some rock songs -I couldn't tell the difference between 92kbps and 192kbps through the supplied headphones!
Do you know if there is a way to calculate optimal quality if you know a spakers output?
i.e. The JBLs have the following:
Nominal Power Out: 6W (I understand nominal in the economic sense -but not really here -unless we have to adjust for inflation
I'll google this.
Response Bandwidth: 100-20000Hz
Input Impedence: 10Kohm
Signal to Noise Ratio: 80dB
Audio Amplifier: Integrated
Connectivity Technology: Wired
Voltage Input: 100-240 Vac, 50-60Hz
Unweighted Pink Noise: 95dB
and a review that said the Output dropped off below 90Hz -I'll have to Google this as well -not really clear on this right now.