How can a PS Audio Perfect Wave DAC enhance my system?

You can get the streamer module in the PS Audio DAC and use it instead of your popcorn streamer. So you will have a dac for streaming and your CDs. As mahler123 is saying try it and see if you hear any improvement. That is at the end the most important. You can call PS audio and they will help you figure this out.

I2S transports the DSD output from SACD . TheTransport device--the extractor, in this case the Perfect Wave-needs to be able to send it to a DAC that has an I2S input.  The PS Audio DAC can also replace the DAC in your server for Red Book and other digital sources.

I play SACDs from an Oppo 105 Universal Player that sends the DSD via HDMI

to my DAC which has HDMI inputs. That isn’t your situation, since PS Audio doesn’t deal with HDMI, but for your information to let you know that it is available as an alternative.

Most dealers have a 30 day return policy. I can vouch for Music Direct being very good in this regard. You can order the DAC, try it for a week or so, make up your mind. You may have to pay some sort of shipping or restocking fee. I believe that PS Audio has recently gone to an Internet only purchase system, direct from the manufacture ( I may be wrong about this).. I haven’t bought any of their stuff since this happened but as bewgow above notes it is in PS Audio interest to allow their customers to audition their products so it is worth contacting them.  The major hiccup for you might be that you are not in the US; again calling PS Audio seems like you best bet currently to see what your options are

Thanks for the grea info mahler123.  My Marantz SACD has coax and Toslink digital outputs.  Can they be utilized?  There is no HDMI or I2S.

I am presuming that the PS Audio DAC has S/PDIF inputs so yes you can play Redbook CD.  You won’t be able to play the SACD layer of your small SACD collection so just continue to play them as you currently do

I run my PSA DSD through my VTL 7.5iii preamp. It sounds miles better than directly from DAC to amp. Cannot spoeak to your preamp talents. Try both.

I have used digital from the first CDP - the Magnavox CDP 650 -- since around 1986, and have had CDP's and numerous DAC's throughout. The PSA DSD is a first rate, top-of-the-line DAC, not least of which included the free upgrades from PSA. I have not been moved to look into a newer DAC in a few years, especially when I installed the Bridge II as a streamer. It all sounds glorious and functions very well. The Shunyata Sigma IC's were the topping on the cake running  from DAC to pre and pre to amp. Neal