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In Reply to: RE: seems a bit drastic posted by madisonears on July 25, 2017 at 22:13:31
Call me a lunatic but my previous experience (related it seems by other users) is that LM4562 needs a good 100hours minimum to start sounding as it is supposed to. The first days it sounds cold and sterile and slightly forward, then it mellows down but remains transparent and open. I know op amp break-in is a controversial subject but I heard it... i guess most people trying to quickly compare don't give enough time to the chips to settle down. My opinion of course. :)
Follow Ups:
You get no criticism from me regarding break-in of ANY modification to a system. New solder joints and all other components require some indefinite period to somehow settle down. I think the length of time required relates to current flow and complexity. At line level, it can take several days or even weeks of regular playing. At speaker level, I think the process occurs in less time, except for speaker drivers which also involves a mechanical element.
The 4562's were in my system for a couple years. They did improve initially, but only to a certain point. I was never completely satisfied with their overall timbre. Lots of people like them, but I eventually moved on to the much more realistic OPA627, then the even better Sparkos Labs discrete.
I hope your experiments go well. Let us know.
Peace,
Tom E
berate is 8 and benign is 9
Ahhh, Sparkos Labs discretes... I would really really love to try them! Unfortunately I'm afraid the current draw would be too much for that circuit :(
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