OP amp swap ?

[mattoe]

Does anyone have an opinion on swapping out the op amps on the white oaks boards ?
I'm just curious if any one has upgraded them and what if any benefit....

 

[laatsch55]

Joe went through quite a few prospects and he determined the OPA'S were the shit.
I'm inclined to believe an engineer of his caliber..

 

[mattoe]

I agree, joe is the authority!
But I imagine he had to consider cost also ...

 

[Gepetto]

You do so at your own peril, the design is SPICE optimized for the OPA134, you can see the transfer function result and phase/gain margin in the design report sent over with your documents.

 

[mattoe]

Good to know .... I will leave them alone !
Just curious if anyone had swapped them for something else ....

 

[Gepetto]

No Matt, the OPA134 is possibly the finest audio op amp ever designed by the masters at Burr Brown.

 

[mlucitt]

Joe, have you played with the Texas Instrument's TINA-TI simulation program? I saw a download for it on the OPA134 datasheet.

 

[Gepetto]

I have but it is limited Mark. I have a full blown TINA SPICE license from Designsoft. The freebie TINA-TI and LT Spice are feature limited versions of TINA. Useful for small projects.

 

[mattoe]

Thanks joe ... I'm gonna leave well enough alone ...
I came across these beauties and just thought I would post the question and see where it goes !

https://www.bursonaudio.com/products/supreme-sound-opamp-v5i/


Check out the V5i ... snake oil ?

 

[Gepetto]

Thanks joe ... I'm gonna leave well enough alone ...
I came across these beauties and just thought I would post the question and see where it goes !

https://www.bursonaudio.com/products/supreme-sound-opamp-v5i/


Check out the V5i ... snake oil ?

Yup, why would one make a semi discrete op amp? Sketchy on specifications and where given, the BB integrated op amp wins handily.

 

[Mohawk]

Looks like it should sound good ... lol...

 

[Gibsonian]

If I'm not mistaken, I am pretty sure that Sutherland uses the 134 in some of his phono pre's, if that is an indicator of what another engineer's take is on it. His phono pre's sound great, and they aren't cheap!