Once...this year actually. I was running Silnote Audio Morpheus II Series II XLR Interconnects, from my source Oppo 205, direct to my Parasound JC-1s. The detail was amazing compared to my prior MITs, yet still smooth, with a rare sense of etch (mostly source recording issues IMO). I decided to step up in the Silnote line. The Poseidon II XLR interconnects, at 2x the cost. The Poseidons are of the same materials, just more of it, with a slightly different design weave within the cable They are touted as being a "luxurious" sounding cable with great reveal. I quickly realized "luxurious" meant more lush, and more smooth, yet at the expense of the nuanced detail. It moved the sound in a pleasant direction in some regards, but overall it was not as "live" as being in front of an instrument/band. The Morpheus II Ser II just pounces everything in this regard. I could see using the Poseidons in a more digital sounding amp, but the JC-1s are naturally smooth and unetched in their own regard, and didn't need that assistance...so...to get the best realism & detail in a still smooth sound, I moved back down to the Silnote Morpheus. I have since moved to Tube Amps, and found the benefit of the less expensive, "step down" Morpheus XLR interconnects, to be even further pronounced over the Poseidons, in the tube application.