Can this be seen? & TL072's

[WeAreAs1 at aol.com]

Hello Keith,

In a message dated 4/28/99 12:32:19 PM, you wrote:

<<While I am at it, any thoughts about changing TL072's for
NE5532's in VCA's?
I have just done this in one of my VCA's and am trying to 
convince myself that it sounds better.>>

It doesn't.  Sound better, that  is.  The noise generated by the opamps in 
your VCA is typically masked (and considerably so) by the noise generated by 
other parts of the VCA, for instance, the gain cell.

Also, TLO72's are pretty quiet in the first place.  Maybe you'd hear a 
difference if you were replacing a bunch of 741's, but as it is, you'd 
probably be better off spending your money on a nice meal or a movie.

The most important factor in getting the best noise performance out of your 
system is *gain structure*.  Keep those signals as hot as possible at all 
times.

Michael Bacich