For the price you have mentioned, T+A would be the best choice for a DAC that can do pure DSD. Especially because you use Rood to upsample everything to DSD 256. Try to audition that and see if you like it. Hope you get to audition a "burned in" unit, rather than a fresh one.
DAC recommendation for DSD input
Hello-- 80% of my listening is streaming local DSD (64-256) files via Roon. My current system is Roon Core on an iMac Pro making its way to a Sonore Optical Rendu which is connected, via USB to the DAC in my Hegel H390 integrated which feeds Magico A3 speakers and a pair of REL S/510 subs.. There is nothing at all objectionable to my current system, nonetheless, I am wondering if an external DAC might be an improvement over the H390's DAC and if that is a worthwhile spend. I am space constrained so I must stick with an integrated (pre+amp), but do have space for a DAC and the Rendu system.
I have spent hours researching many of the newer and older DACS, including the cheaper "Chifi" DACS (Topping, Gustard R26 and X26iii), T+A 200 DAC, PS Audio Direct Stream MKi2 and Mola Mola Tambaqui (used) and other DACs in-between (Denefrips Pontus and Terminator, Holo May, Wyred for Sound 10th anniversary, etc).
I would rather spend $5k-$10K for a significant improvement as opposed to $1K-$4K for no or a slight improvement. My hope is for more resolution, more musicality, less high frequency fatigue, tighter bass. Is it unrealistic to expect that an external DAC will bring a significant improvement?
My system is in a decent room, but there is little to no choice in speaker placement or room treatment opportunities.
I have a chance to audition the T+A 200 DAC and the Direct Stream MK2. In a previous system, I had an MSB Discrete stack which was nice, but I'm not sure that would be the worth the cost today.
What type of DAC (chip based, FPGA, R2R, OS/NOS) is more structured to DSD input? I've almost ruled out R2R, but could be mistaken? The deeper I look, the more confused I get.
Thanks for any recommendations or advice.