Quote: Both cards were in perfect condition when installed. It's not even worth sending them back as the postage is half the cost.   Not a good first time experience, Need to decide if I want to try some different Op amps,But fear I will just get another 2 faulty one's .    

Just finished installing and uninstalling my OPA627 amps that finally arrived from the US. I had to uninstall them as there is no volume. Volume at 100 is just audible. Very disappointed.  

Hi Auxinput, I am thinking of getting the THS-4032 and OPA627 to try with my Beyerdynamic DT880 250 ohm headphones.