I haven't used the exact procedure there, but I have had to use higher gauge (smaller conductor) speaker wire in pairs that way in some applications. We have a portable Crown amp and JBL P.A. setup used for mid-sized press conferences and such - the audio patch bay in the rack is too small to use a good thick wire in so I usually double up the outputs with whatever wire happens to be in the armored box that day (usually 18-16ga. lamp cord tied into knots - I hate using other people's equipment! )

Maybe some day I'll really wow them all and Litz braid the cables. *snicker*

Bren R.