Very short speaker cable length recommended?

JI35 reminded me of when I first contemplated changing from biwired Kimber 8TC to Mapleshade Double Helix. Frankly, I assumed I'd biwire with the new stuff. Pierre wouldn't sell it to me, said to try it single-wired (with his ribbon jumpers) and see if I didn't like it better than the Kimber. It sounded so MUCH better than the Kimber that I didn't even consider going biwire. And I sold the used 8TC for about twice what the new Mapleshade cost.

There is a small on-line cable company that makes wonderful cables, some of the best I've ever heard. When my new wall unit required that I move the speakers about 15' away from the source I decided to go with long interconnect runs of this cable into mono-amps and short (6') runs of speaker cable. The bass dropped off dramatically, as did the impression of power and dynamics. When I changed interconnects to those containing thicker, heavier wire things returned to normal.

It seems to me that there are definable, quantifiable values that determine whether this or that cable is electrically suitable and will perform as expected in any given situation. Certainly there are differences between the sonic character of this cable and that by virtue of their design and the materials from which they are made, but we as consumers should not have to play guessing games with electrical parameters and it is high time that manufacturers step up to the plate and start supporting our efforts at component matching by either standardizing or disclosing specifics that directly relate to component/cable matching.

Go 6.5 ft or longer(2.0m)speaker, its the more optimal range overall in most cases it seems, unless maybe running a non-full range speaker, like a woofer section or something running under 250 hz lets say then maybe 3ft or less would be more effective... Even with interconnects it seems Half meter might be worse sounding than 1 meter standard in some scenarios as well, I have no real world explanation for it but there it is.

Even with interconnects it seems Half meter might be worse sounding than 1 meter standard in some scenarios as well

It has to do with the electrical properties of the cable at the specific length as it couples with/influences (i.e. enters the circuit) the stability and the impedance of the source loading (output stage) and the impedance and type of input of the load.
See Sean's recent post in "diy interconnects review".

>>Go 6.5 ft or longer(2.0m)speaker, its the more optimal range overall in most cases it seems<<

There is no empirical data to support this and any knowledgable cable designer/manufacturer will always recommend shorter paths when possible.