Hello SeaStar,
It is nice to know that there are many products not paid any attention to, simply because they are not expensive enough to gain any credibility. The audio market (thankfuly) is just slap full of them. Here is one of them (and it is perhaps just what you may need).
The AMC DAC-8
INPUTS: 3 digital co-axle / 1 Toslink
OUTPUTS: 1 (pair) L/R Stereo analog outputs
1 (one) BNC digital output
INPUT SELECTION automaticaly adjusts (and locks) for: 32K/44.1K/`48K
INPUT SELECTION is via: pushbuttons on the front panel and there are (green) LED's signifying the sample rate.
Over the years, I have owned 3 of these. They were about 300.00 (or so) new... around 1995. I bought one (new) then and used it with a variety of players. I even used it with an original Rega Planet. The sound was similar to the Rega, but slighly drier and a bit more natural. At times I prefered the AMC. I have since sold it and have had a couple more come and go in trades. They are a "very" good quality, very good sounding and reliable DAC. They are also one of the most multi-funtion units that I have the pleasure to use.
This may just be what you need. It is a good DAC with a "DIGITAL OUT" (via a BNC connector).
Or ... Would just a "splitter" (or perhaps a "Y" help you ? You could then use any other DAC "without" a the need for a digital out.
The AMC DAC-8 is usually about 100.00 (+/- 25.00) on the used market. Worth every penny. Good to have around just as a back up.
Tubby