Ok some low cost options that do DVD-A and SACD,onkyo DV-SP502
Samsung HD-950
Pioneer DV-588A-S
Denon DVD-1920
Toshiba SD-6915 Multi-disc
Toshiba SD-6980
Yamaha DV-S5860
Yamaha DVD-S657 `
Note: non of these decode HDCD.
Note2: if you need audio only, keep in mind that some of these were ment to be used with a TV, so track navigation and some features might be tricky to get to front remote or front panel only. Try before you buy.
Note3: I've heard non of these.
Note4: I didn't check if they do multi channel SACD, if that is important to you.
cheers
paba