Hello,

 

I am an owner of F930BT. Upgraded Mazda 5 stock speakers to Morel Hybrid 602, added Mosconi AS 100.4 amp and a Hertz 10" sub. Installed an Alipine Back Up Camera. The system sounds decent. The best sound by far is reproduced from the good old CD. The 2nd place goes to the USB pen drives with WAV files. Third - SDHC with the same WAV files. 4TH is a USB powered HDD (same WAV) and 5TH is the IPOD via Pioneer cable (ALAC)

 

I wonder why the USB sounds better than SDHC. They must be using the same DAC. Or not? What is the DAC in this particular model?

 

And a more general question: what is the sound signature of Pioneer AVIC throughout the generations? F - NEX? Is NEX a big sound quality upgrade?

 

Looking forward to your thoughts.