gustavo.skn

Hello, Does the server OS or audiophile implementations makes any difference in final SQ when using a NAA? For example 1) MacMini running HQP in OS X vs MacMini running HQP in Windows both sending music to a NAA 2) MacMini with a SSD or a audiophile power supply vs MacMini without any mods both sending music to a NAA Thanks

tranz, Have you tested the SD boot card config? Since you use SSD, even external, we could know if the sound differences comes from vibration (of HDD in Superdad case) or is the SATA that is introducing noise in the system. Which version of MacMini is yours? Gustavo

Hello Alex (Superdad), Your post got my attention enough to register here (Long time reader of CA but never seen something worth to register and give some opinions until now) All your tests are really impressive, congrats. SD card sounding better than HDD internal drives are something I expected since it produces vibration. I know this was already said, but SSD should give you more idea if the SATA controller being on is what is making the difference you hear or it was just all the vibration. What I don't have any good explanation is why different locations of files (HDD, External, FW, SD or RAMdisk) is making difference since A+ caches it in RAM. Being more clean A+ -> get the 0 and 1s of the music from HDD -> stores into ram -> starts playing A+ -> get the 0 and 1s of the music from RAMdisk -> stores into ram -> starts playing In the end, both are playing from the same location, isn't it? Have you compared it using only one music in the playlist? Because the only explanation I can think for this difference is that, if you have more than one music in the playlist, while it is playing from cache, the SATA controller is introducing noise for reading the next file and starting to put into cache and that don't happen when you are playing from the SD card. IMO, RAMdisk is only usable if you keep your computer on 24/7, since everything disappears when you turn it off, isn't it? Thanks, Gustavo