I got a Teac UD501 a while back which handles up to 2xDSD and DXD a while back.
In my system with a Mac Mini (QC 2.6GHz, 16GB RAM, 256GB SSD) Audirvana Plus in Integer/Direct mode, I found it wasn't quite as resolving as my (pricier) Bel Canto DAC3.5VB MkII - which only handles up to 24/192 but not DSD.
I've also recently built a quiet PC (QC 3.9GHz, fanless PSU, fanless heatsink, 16GB RAM, 240GB SSD) and run Windows7 + JRiver - which can dynamically perform DSP on any material to 2xDSD. The combination of the quieter machine, JRiver handling 2xDSD IMHO improved what I was hearing on the Teac considerably, I thought. Of course, this is dependent on the computer up sampling material to 2xDSD but I did prefer this to the Bel Canto.
IMHO DSD material (native or upsampled) have a nicer more analogue feel to it.,, it is also more resolving with complex passages in music.
I first noticed this with the same PC hooked to my Playback MPS-5 via USB-X which sounded better than Audirvana Plus running in Direct/Integer mode. I now use the Mini to run JRiver Mac to do the same 2xDSD conversion to the Playback in that set up.
In my system with a Mac Mini (QC 2.6GHz, 16GB RAM, 256GB SSD) Audirvana Plus in Integer/Direct mode, I found it wasn't quite as resolving as my (pricier) Bel Canto DAC3.5VB MkII - which only handles up to 24/192 but not DSD.
I've also recently built a quiet PC (QC 3.9GHz, fanless PSU, fanless heatsink, 16GB RAM, 240GB SSD) and run Windows7 + JRiver - which can dynamically perform DSP on any material to 2xDSD. The combination of the quieter machine, JRiver handling 2xDSD IMHO improved what I was hearing on the Teac considerably, I thought. Of course, this is dependent on the computer up sampling material to 2xDSD but I did prefer this to the Bel Canto.
IMHO DSD material (native or upsampled) have a nicer more analogue feel to it.,, it is also more resolving with complex passages in music.
I first noticed this with the same PC hooked to my Playback MPS-5 via USB-X which sounded better than Audirvana Plus running in Direct/Integer mode. I now use the Mini to run JRiver Mac to do the same 2xDSD conversion to the Playback in that set up.