Originally Posted by
Codifus
You know that the 49720HA is supposed to be a refined LM4562NA?
Also, when swapping opamps you really need to let the system settle in. Constantly playing music for 3 weeks, yes, 3 weeks minimum, for starters.
Yep - I agree with you now! I put the 49720HA metal can back in last night and I think it does have the edge over the LM4562NA. It seems to have a slightly bigger sound stage and generally seems a bit more accurate. Maybe ever so slightly less bass though.
Loving it at the moment!! Everything sounds great!!! Well apart from Coldplay but I don't think any op amp can help that 
Butuz
Quad 99 CDP-2 >> Eastern Electric Minimax Pre>> XTZ Desire AP-100 >> PMC GB1i
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