Shini44
Headphoneus Supremus
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- Sep 22, 2012
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guys do i need 2x LM4562 or i should use one on the M-Stage
guys do i need 2x LM4562 or i should use one on the M-Stage
I've tried a couple op-amps and the changes have always been minor, and certainly nothing like what you're describing.
I don't hear that much difference between the stock op-amp and the LM4562 I have in there now.
You could argue that two single Op Amps on an adapter may sound worse than one dual Op Amp without an adapter board.
An adapter just adds more parasitic elements to the circuit.
I haven't tried the stock OP AMP but the difference between the class a opa627 I got from Tam Audio and the lm4562 was certainly not minor to my ears at all. Opa627 was warm colored and muddy IMO and had a totally different tonality than lm4562. Maybe stock is closer to lm4562?
http://www.mouser.com/ProductDetail/Texas-Instruments/LM4562NA-NOPB/?qs=sGAEpiMZZMtCHixnSjNA6JlKxGj6zye%252bDw5UwZXQkUk%3d
same? i don't think so :/ why does they have the same code yet not the same shape?
Yup, they are the same. You need the DIP8 package, which is what you have linked on mouser.
The link on TI shows the SOIC package. Same identical operation, different size/shape.
is the LME48710 is a single version of the LME4562?
I just tried the stock opamp since i had the amp with the 627 already installed and the difference is quite big. The stock one make the music less dynamics imo.
I ordered a LM4562, but until i get it i'll be putting the 627 back for sure
Have you chek if the schema is compatible with the LME4710, the 627 is a jfet and the LME4710 is a bipolar ?
You can have noise and continus courant if you put a bipolar instead a jfet...
When I buy, chips, I take several ships.
The LME49860 have been prefered to the LME49710 on several discussions (similar sound but more natural, better mid, better on the voices, more soft).
The ADA4627 have been prefered to the OPA627 on several discussions (similar sound but more defined).
My prefered are OPA211 and OPA1611 (more soft).
Good tests
Proton
I just swapped the stock opamp for the free LM4562 sample that I received from TI. To my ears, the first thing I noticed was that the LM4562 makes the treble more delicate. Thinner, sharper, and more defined. Actually, a better word would be crisper. It sounds very crisp. The stock opamp sounded more "diffuse" and "atmosheric" in the treble. It's a bit analogous to tighter, faster bass with sharp impact, as opposed to fatter, more resonant bass with duller impact. Except... in the treble. Sorry if I'm not expressing myself very clearly; sound is hard to describe
I fully agree with your description of the LM4562.
And I know what you mean, sound is hard to describe, I'm terrible when it comes to describing sound too!