Hi and thanks for taking the time to read this post. I have purchased a nice dac which uses an Burr Brown opa2604 opamp. Can anyone suggest a good upgrade. I was thinking of the ever popular BB opa627ap but have been told this is quite old and should really consider a modern one. Can anyone please advise, something which works well in the opa2604's current environment (voltage, current, etc) Many thanks in advance. John.