While a cable might help, I recommend Acoustic Zen for coax, and WireWorld Platinum for USB, my guess is that the upgraded streamer is uncovering the shortcomings of your DAC. Or, and this a stretch, you have excessive noise entering your system. I have found that digital is especially susceptible to interference. Check your cable routing and make sure your Ethernet and coax/USB are not nestled in with power cords.
New Innuos Pulse, need assistance.
I'm now two weeks into having a Innuos Pulse (upgrade from Bluesound Node2i) in my system, Im a streaming only guy. System is Tidal/Pulse/McIntosh MA8950 (with its DAC). Im using my Cardas Parsec COAX cable from Pulse to MAC. I'm using supplied ethernet cable. My initial impression was- more detail, soundstage, requiring less volume from AMP, more bass. \However, I also found that sound was bit sharp, that is to say, no smooth, bass is louder, but almost too much. Of course its hard to describe sound impressions but I'd say Im not loving it yet, just doesn't sound great to me. I continue to run it (break in). Probably approaching if not surpassed 200hrs. Ive asked the dealer to send me a good USB cable (likely Cardas) to try and its on its way. Im anxious to see it that will change things. Any thoughts or experiences with the Pulse? Thanks for all feedback.