It would be wise to filter what you read on these forums. Find the industry expert and listen to them.
I can tell you that most audiophiles make the mistake of trying one DAC after another thinking that this is the path to nirvana. It's not. It is a system, not just one part that gets you to nirvana.
It's like changing a phono preamp over and over without changing the source, the stylus/cartridge and arm.
Start with your source and make it exceptional. Then try some DAC's.
By source, I mean the feed from your CD player or computer. Jitter is the #1 problem with digital audio, so find ways of minimizing it. If you want to spin CD's, add a reclocker like the Synchro-Mesh to reduce jitter. If you want to stream from a Sonos, add a reclocker to that. If you are using USB from a Mac, this is more difficult for you to reduce jitter. You almost need to get a Berkeley USB converter, used on Audiogon, and drive coax to your DAC with a really good coax cable. Relying on the USB interface that is built-into an inexpensive DAC will probably not get you there.
Some find that older NOS DACs sound much more like analog and there is now a resurgence of custom ladder DAC designs that are becoming popular as well. Some of these NOS DACs are inexpensive on ebay.
Then there is Ethernet, the best new interface that is generally lower in jitter. There are some gadgets to play with from Sonore audio and others. Some of these can enable you to use Roon, which is very popular. I have mostly abandoned USB in favor of Ethernet for my own products. There are fewer hoops to jump through than USB to achieve superb results.
Steve N
Empirical Audio