Speaker Jumpers

@squared80 who are you addressing? Let's put our subjectives or our own perceptions about sound aside.  There's a science in metallurgy and that includes cables.  Are you suggesting that there is no difference in gold,  silver,  copper, aluminum, wrought iron, cold rolled steel etc? Tell that to an electrical technician or a structural engineer. Cables make a difference - huge or subtle- you have to find what works best for your system and for your taste. I personally witnessed how a custom Furutech power cord I'm now using for my Innuos Pulsar beautifully transformed the sound.  I witnessed how much better my older Ansuz X2 USB cable out performed the newer and more expensive Audience FrontRow USB. And I recently witnessed how Furutech JumperFlux-S jumpers underwhelming performed vs the Klipsch factory spkr jumpers. Why would I make this up? This is what I'm hearing.

Have you ever looked at spkr or amplifier binding posts internally and the wiring terminals that are used?  Problems probably start here followed by lousy spkr cables. 

Room acoustics is definitely a huge factor and I agree with you here. 

Are we still on this subject?

https://www.audioquest.com/products/rocket-88-single-biamp-speaker-cable-na

Or you can use something like these cables above. I have the "Castle Rock" version which have been out of production for some time. The "treble" wires are smaller gauge than the "Bass" wires.

The versions going down to Rocket 11 are more affordable.

Agreed about the nastiness of the Klipsch speaker terminals. Just went inside my cabinets to re-tighten the terminals which are ludicrously fussy to work with.

I was wrong. The Furutech JumperFlux-S actually sound really good! 

On Feb 5 I made up my mind that the Furutech JumperFlux-S were wrong for me so I reverted back to the original Klipsch metal strips. But the following day I switched back to the Furutech's and left everything playing for 36 hours while I was away at work for my 24 hour shift thinking I had nothing to lose. Wow! These jumpers have probably broken-in now. Compared to the Klipsch factory strips, the Furutech jumpers are:

smoother and more resolved

Cleaner highs at higher SPL

Richer bass + mids

PRAT intact, but more sorted and without edge or glare

* I honestly think these speakers need better binding posts so I'm looking at Furutech Furutech FT-867 NCF(R) Series

I give up.  The mids are now muddy and a saturated mess. These jumpers are temperamental and have been testing my patience. Can someone  plesae help me with this? According to AI, for what it's worth, "Furutech JumperFlux-S jumpers typically require 200-300+ hours of continuous playback for lower mids to fully settle and gain coherence in your Accuphase/Klipsch setup". This is painful! 

So to check my sanity I reverted back to the Klipsch factory strips and the mids are qell defined and everything is coherent.