Has anyone tried any other Opamps lately? I threw a LME46980 in my EF-5. It was impressive at first, very silent, lower noise floor then the stock opamp, and the ad743jn's. Pretty flat mid and bass, the high's where pretty crazy though. Extreme detail, but it was to much, and was a bit fatiguing after awhile. I can't recommend it. It should be the same or similar to the LM4562. Im thinking of trying a pair of AD797's, and AD626, and perhaps an LT1364. Has anyone heard these?
What about the almighty OPA627? I want to try this one, but it's very expensive at 35$ each, and you need 2.