What's the different between OPA-541AM, OPA-541AP and OPA-549T - diyAudio
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Old 4th September 2006, 03:57 AM   #1
100db is offline 100db  Thailand
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Default What's the different between OPA-541AM, OPA-541AP and OPA-549T

Hi
Anybody have a chance to compare all of these OPAs side by side ?

I used to build all of them ( including 3875 and 3886 ) using inverting configuration, but never have a chance to compare them side by side because alway blow it up by mistake ( I didn't use current limit Resistor ).

I know the OPA and LM are different ( in sound characteristic ) but don't know if there are any different between the OPAs.
My feeling is 541 give tighter bass than 549 ?
Is the 541 more powerful ?

Thanks very much !
Ball
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Old 7th September 2006, 03:26 AM   #2
100db is offline 100db  Thailand
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Any one experience this ????


At least on the power, by theory... 541 @ +/- 35v should give higher power output than 549 @ +/- 25v, right ?
But I saw one post about feeling on 541 not as strong as the paper claim, just would like to confirm this.

thx.
Ball
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