It's a pair of columns that came with my old stereo Denon D-F88. I don't have the specs.
About the cables are simple and very basic. Check the image below with the cables connected on the backside of my amp (sorry because it's not a very clear image). The manual say nothing about the speakers.
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Hard to see anything particular from the pics. If the wires are of sufficient gauge. or with necessary shielding, for their purposes they're likely not an issue. Try this set of articles, mostly speaker wire but mentions interconnects. http://roger-russell.com/wire/wire.htm