I have tested a number of AudioQuest RCA cable. I am concerned primarily about the sound quality - neutral and low-loss transmission possible with good resolution. The sound quality I am absolutely not satisfied. Easy transfer with very poor resolution. Short tones without Brillants and subtleties missing. I tested the cable to 3 different CD players and was able to achieve a usable sound result in any CD player. Each supplement cable was much clearer and provides significantly better resolution. The cables themselves are well made, where the plugs are too small / short and can not be solved without rubber gloves. Considering the high price, I can only give one star for the good workmanship. After many attempts, I have replaced the cable with a very reasonably priced, much better audio cable.