The ULN/LIO converters sound better, but they unfortunately introduce slightly more latency.
2882: A/D 39 samples, D/A 28 samples
LIO-8: A/D 63 samples, D/A 44 samples
So, at any given buffer setting, I believe the LIO will have 40 samples more latency than the 2882 (about .9ms at 44.1k).
Thanks James.