I really liked the sound of old Theta D/A, so I think that is mostly Burr-Brown DACs. However, post 2000 DAC jitter rejection and playback of Redbook (44.1/16) got significantly better.
Older DAC's really like hi rez signals, while the best new DACs perform very similarly. If you want to try out some old DACs you might want to explore Wireworld's Remedy reclocker. The limitation there is everything gets converted to 96kHz/24 bit, regardless of the incoming signal (can be higher, or lower). I have found that, for instance, with the ARC DAC 8 this really improved performance.