OP-Amps Change (Part 1)->NE5532 to OPA2604->bad..

okay,
changed the onboard NE5532 from the ES9018K2M to OPA2604 (first try in op-amp changing) and the result is:
BAD !!

it destroys the analytic sound completely..the NE5532 are in this case (and on this board) absolutely the better choice..

I´ve just ordered some Muses8920 and will report then..(i guess the AD797 seem also to be in that league)..