Nope, in the servo feedback. It is what they suggest in the PDF sheet.
I was going to try it with and without, they are optional - they cutout the dc offset - but the results were so outstanding with them in, I did not short them out. It was all the rat shack had on a Sunday afternoon anyway. At least they are not polarized 'lytics.
One caveat with this setup, it would not work with the bassis in the bypass mode. It says in the pdf that it has to be driven directly off the op amp (which basically what a bassis is comprised of) and they meant it. Mucho noise in bypass. I permanently bypassed the bypass switch at the pc board. Not sure how the output of the sony es receiver is set up, but apparently it was not low impedance enough. So anyone who is going to use this may also have to set up a op amp in the input. Easy enough to do, just want anyone to be aware of it.
Lot's of low rent stuff stacked up into a medium rent pile.