Can only give performance of the "Coincident" cables as I have not made comparison to the Acoustic Zen. Have the Coincident CST I speaker cables, Interconnect and Power Cord. First of all the build quality is exceptional, the spade ends on the speaker cables remind me of the ends on Transparent, top notch quality. Each product brought my system to a new level of performance, the speaker cables brought actual sound out on some recordings that I had not heard prior with my existing cables. Exceptional detail and clarity on the top end with precise and tight bass on the bottom end. The soundstage opened wider and with more depth than my previous cables. The power cord & interconnect on my CDP made the sound more accurate and clear with a sense of weight on the bottom end. I was skeptical about these cables and purchased these based on reviews from others on audiogon. For there affordable price range compared to the higher prices of cables I had in my system before, build quality and exceptional performance they compare and better all other cables I have owned before which included MIT, Tara Labs, Transparent Ultra, XLO & Analysis Plus. They do continue to perform better and better as break-in time elapses and am really enjoying the processess, my hope is that they continue as more detail to the music is exposed almost each time the system is turned on. One of the best investment risk in audio by far, my search for cables is over, thank God.
