@tomthiel
Playback of SACD disks via a disk player using an external DAC is a special use case. To my knowledge, there are essentially 2 ways to turn this trick aside from the PS Audio solution, both require that the disk player have an HDMI output (such as a SACD capable Blu Ray player like the Oppo’s).
To use the HDMI output directly requires a DAC with an HDMI input, such as a Bryston BDA3 or a NAD M51 (which like the Oppo is discontinued).
The second is to use something like the Geerfab D.BOB (digital breakout box), which is a $1000 item, and sits between your SACD player with HDMI output and a DSD capable DAC which supports DOP (DSD over PCM). There are modestly priced SACD capable Blu Ray players which can serve as your transport.
A totally different approach, and the one I utilize myself, is to rip the DSD layer from the SACD, and then stream to a DSD capable DAC. If interested in this later approach, PM me, and I’ll be happy to point you in the right direction.