Which one is better?

-_nando-_ · 17th April 2006, 10:47 PM

Hi people !

I don't know which one I'll buy... I'm between OPA 2604 and 2134 ! I'll buy 10 pieces !

Which one sound better? Is it a question of taste?

What are the diferences between them?

Thanks !

SteveMajerus · 20th April 2006, 01:19 PM

They are quite similar, but I think the 2134 has the edge due to its higher PSRR (Power-SUpply Rejection Ratio). Basically, it means you can use smaller filter caps on the power supply, or there will be less "noise" coupled to the output from the power rails.

-_nando-_ · 20th April 2006, 03:23 PM

...and 2134 is cheaper too !

Thanks !

Gooch · 20th April 2006, 06:21 PM

I have the Opa 2604 in my CDP right now it dosen't sound that bad some say it has abit of edge to the sound. It dose sound better then LM6172 that was in there and the older analog devices I have tried. I awaiting my OPA627's to arrive which I will use in conjunction Opa132 on browndog pcb's

Regards

Dave

17th April 2006, 10:47 PM	#1
-_nando-_ diyAudio Member Join Date: Dec 2005 Location: Sao Paulo	Which one is better? Hi people ! I don't know which one I'll buy... I'm between OPA 2604 and 2134 ! I'll buy 10 pieces ! Which one sound better? Is it a question of taste? What are the diferences between them? Thanks !

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20th April 2006, 01:19 PM	#2
SteveMajerus diyAudio Member Join Date: Sep 2004 Location: Cleveland, OH	They are quite similar, but I think the 2134 has the edge due to its higher PSRR (Power-SUpply Rejection Ratio). Basically, it means you can use smaller filter caps on the power supply, or there will be less "noise" coupled to the output from the power rails.

20th April 2006, 03:23 PM	#3
-_nando-_ diyAudio Member Join Date: Dec 2005 Location: Sao Paulo	...and 2134 is cheaper too ! Thanks !

20th April 2006, 06:21 PM	#4
Gooch diyAudio Member Join Date: Aug 2005 Location: West Coast of Florida	I have the Opa 2604 in my CDP right now it dosen't sound that bad some say it has abit of edge to the sound. It dose sound better then LM6172 that was in there and the older analog devices I have tried. I awaiting my OPA627's to arrive which I will use in conjunction Opa132 on browndog pcb's Regards Dave

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