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Seeking advice/tips on improving sound quality
Try Pure Music on your Mac, worlds better than the in built iTunes decoders and free to trial http://www.channld.com/puremusic/ |
I would look at getting a nice dedicated DAC to connect to your pre-amp and then connect the IMAC to the DAC (USB is fine). The better the DAC, the better sound your going to get. Honestly, I don't think upgrading the software on your Mac is going help that much. What's your budget to improve the sound from the computer? |
Just to share my story. I started off using a Mac mini to an Ayre Codex DAC, but I wasn’t happy with the SQ, too much USB jitter. I was thinking about adding all kinds of tweaks like linear power to the Mac and other tweaks (USB isolators, Sonore MicroRendu) and then I realized that with all these tweaks, it would have ended up costing the same as buying a audiophile music server (without all the work), so I ended up buying an Aurender N100H and now the music the Aurender + Ayre Codex can produce is very very good. No jitter. One option is to ditch your iMac and put your music on an Aurender or Melco N1A like audiophile level music server and connect it to a good sounding DAC. It’s a lot of work and money to get computers to sound good but I think your best bang for buck is an upgraded DAC. |