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Which Opa with M-stage??

post #1 of 9
1/17/12 at 5:39am
Thread Starter 

Hi,

I bought a Matrix M-stage USB DAC and I would like change OPA2134 with another op-amp...

I read in this forum and the best chip for this amp seem

 

AD8066

LM4562

OPA627

 

How I use them??

 

AD8066 is only SOIC....I need a DIP adapter?

 

LM4562 is plug & play...right? biasing??

 

and OPA627??? 

 

Sorry for my english

 

Thanks

 

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post #2 of 9
1/17/12 at 5:41am

LM4562 is a good upgrade over OPA2134.

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post #3 of 9
1/17/12 at 5:53am
Thread Starter 

Can I insert it directly into M-stage?

 

Nothing resistance? nothing biasing? 

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post #4 of 9
1/17/12 at 5:59am

Yes,just mind the orientation.

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post #5 of 9
1/17/12 at 6:08am
Thread Starter 

Thanks a lot.

 

 

And AD8066??  have you listen it?? 
 
I need only a dip adapter for use it? nothing biasing?
 
 
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post #6 of 9
1/17/12 at 7:04am

Hi,

 

I think you´ve got a missinterpretation of what biasing means .. biasing into class A is a additional step to reduce thermal variation and crossover distortion. It´s a "can do" not a "must".

 

cheers

 

 

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post #7 of 9
1/17/12 at 7:20am
Thread Starter 

Hi Neopac, you think good! :)

 

I thought Biasing was a Must!! 

 

Thanks!! 

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post #8 of 9
1/17/12 at 9:42am
Thread Starter 

 

Other opamp recommended for M-stage??

 

I have a Q701 and I would like neutral response, good details, Prat sound with good dynamic.

 

Thanks

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post #9 of 9
1/17/12 at 11:31am

My favorite now is OPA1612,better details than LM4562.

ps my amp is not matrix,but similar

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