Thanks. It sounds interesting. I suppose you mean soldering a capacitor between pins 4 and 7? Wouldn't it be practically easier to make this bypass somwhere in the rectifier part of the amplifier?
I have never heard any benefits either when it comes to electronic parts, not more than an hour or so.
Oh no, datasheets always say to place ceramic capacitors directly onto the power pins if possible. 4 & 7 for singles, 4 & 8 for duals like OPA1652 and LM4562. If the cap is too far away, it becomes pointless. We're talking millimeters here, aluminum electrolytics (the big cylinders) and film caps (tantalums, polyesters, & metallized polypropylene) are the ones that can be placed a greater distance away.