Does anyone know what I saw ?

It was Clearly a Bose.

This was years ago, and it was an ARC LS2, so not too anemic and never to be confused with a Bose product.

Elizabeth, I think item #3 is the closest. These were speaker lamp cables spliced into the preamp outputs (one each channel). It was some type of audio store tweek that they don't want you to know about. That is what I suspect (The dark side of audio sales) that makes things sound better than they will in your system.

Could you please expand more on the pigtail tweek? It sounds interesting and something I have never heard of.
Were do you suppose the cables went to? Ithought they may goto a subwoofer too?

Yes, something you do not want to know about as it will destroy your system. Elizabeth is leading you into audio hell.

It was a Bose get over it already.

Elizabeth's tweak sounds a little like the ground enhancers making the rounds. I think EVS has one and there are others.

After reading E's responce, I'm 99.99% sure what I saw was NOT pig tails. I did, at one time, buy some interconnects that had, at one end, the normal male RCA and a second connector plug that was like a female mini plug jack. The store owner said that was an auxilarry jack that could be used in an active grounding system.? Active grounding is for space ships that are no longer hooked to earth, he explained, but store owner's will say anything. :)

Is it possiable to do some kind of negitive feedback from speakers to the preamp outputs? Is it someway to control speaker distortion?

If I am not mistaken, an interconnect was marketed years ago that had a seperate single thin cable, terminated with a simple small spade connected to the cable's shield; one could ground or float the shield.