I don´t have experience with the Cary 2002, but I tried many 6922 tubes in my SF preamplifier.
As I know if you want more tubey and warm sound try NOS 6922 tubes (Amperex PQ, Siemens, Valvo...) but if you prefer more neutral sound try the 6H30, probably the 6H30 DR work better than the standard 6H30.
As I know if you want more tubey and warm sound try NOS 6922 tubes (Amperex PQ, Siemens, Valvo...) but if you prefer more neutral sound try the 6H30, probably the 6H30 DR work better than the standard 6H30.