Warm, fullbodied, smooth, and transparent

Hi. as you already know, the ones i've used, in order of increasing cost:

Audioquest Emerald ICs were very musical, full and warm. not as detailed though..

Cardas cross or golden cross

Transparent Reference Cables (particularly XL older cable
newer version MM1 or MM2

Purist Audio Dominus

they're all good and fit your description. if you need stuff that would be at the level of ARC Ref series/CJ GAT/etc, the latter 2 imho would be appropriate, and the latter 3 are all up to it.

if you are looking for stuff that would work with NAD, the AQ is very good (though of course better cables are still better).

Again, a vote for the Cardas gr, gc, or nr. All musical. Jallen

Grover Huffman SX: warm, full-bodied, smooth, transparent -- as well as tonally accurate, detailed, and incredibly quiet. All for $200. Amazing. And they don't take nearly as long to burn in as some people say.

Seabreeze, What CD player do you have?

My advice: Don't spend a lot of money on a cable; but a new CD player instead, for instance, a used Rega Apollo.

Seabreeze, What ICs do you use now?