Hi Khenegar, nice to be remembered. It is called the "diagonal"connection method. Use with biwire terminals using jumpers with single wire setup. Purpose? Not a techie but potentially better sound. Easy to do. By the way, ML jumpers are marginal at best and I am being very kind. Upgrade jumpers using your current speaker cable brand or try a solid silver jumper or equivalent but will cost a bit more. I used a DH Labs "silver" wire as my jumpers. Used lug at one end and banana at the other to avoid two lug connections on one speaker terminal. Worthwhile and very audible in my previous Summit system. Best, Gordon
To Split Or Not To Split? - Nordost