Quote: Originally Posted by
durwood 
I Would like to know how that goes, as far as sound improvement. Can you actually replace them on that card easily or does it require desoldering?
I have three different op amps in my possesion that I am still waiting for a time to try. OPA2227, OPA2228, and the OPA2107.
I found a very promising opamp reccently released from National:
http://www.national.com/pf/LM/LM4562.html
Should be even better than opa2134 by BB (on paper ..)