ICs that are the higher spec versions (they are made by the same company, but are the "cream of the crop" of the production runs) most notably in analog ICs, do have a tighter, and lower noise spec, lower dc offset in op-amps, etc. Now if that would make a difference in the 950, time will tell. My own experience is that the lower noise equivalents make a noticable difference, but don't by a long shot make up for bad design decisions made earlier on.

[This message has been edited by soundhound (edited September 30, 2002).]