I heard something slightly different then Bill with the talon x and tenor 75's, I felt that the midrange was a little smoother with the valkyre then the symphony. That could have been due to many factors, shipping/jarring of cables on the trip, speaker placement(at the time, which now has changed) or my younger ears. I say my younger ears simply because I was the only listener there under 30, and at around 30 years old hearing rolls of -3dB at above 10kHz which could have explained the difference that I believe was present. All of that being said I use symphony and am planning on getting twin 15's soon. As far as comparing the cables to Nordost, some prefer the Valhalla to the Jena cables, they(valhalla) offer slightly more detail and bloom, as where the Jena's seem to be more on the nuetral side what you here isn't the cables its the rest of the system(which means when you have the right components your hearing the music). I believe both companies will offer an in home trial, give it a shot and see which you prefer in your system. ~Tim