If you can find one, a Muse Model Two Plus (the "Plus" denoting the addition of HDCD, among a few other upgrades) is a great bargain for the used price it commands. It is a NOS DAC. I've held onto mine for years while other DACs have come and gone in my house. It may not be the last word in resolution, but it certainly is very musical. They come up occasionally for $400-600 and tend to sell very fast. There is currently one available here for $495 (no association with seller). I cannot read the faceplate in his photo, but it should say "HDCD" near the LED's if it is a "Plus" model.
Marco
Marco