Originally Posted by dysenterygary
Has anyone ever done a sound test of a TL072 vs its super expensive counterpart in a shootout in proper circuits? I've searched a bit but didn't come up w/much.
Back in the mid/late 1970's, my THEN YOUNG brain <g> concocted an odd sort of shoot-out, using speakers/ears.
I tried a few different topologies (mostly gain variance), but with six (or more?? I forget) identical "stages" cascaded (with appropriate level matching between stages). That string of "series" stages was compared to a wire via an A/B switch. No, NOT double blind, etc.
Reason? I was attempting to sort through what happens inside of a recording desk with the ALWAYS present cascaded stages.
IIRC, the cascaded 5534's hardly screwed up the sonics vs. the wire. But, speakers and power amps weren't as good as they are now.
The 741 opamps DID sound pretty bad compared to the wire in the same testing setup.
Yes, yes....far from scientific, even though I did have access to (then) state of the art Sound Technology, etc. testing gear.
But, it convinced me to proceed using 5534's at the time.