Viper is good and clear, just less resolution and tranparent over all. Both have excellent everything else. Most notable thing that set's Python apt from other tremendously good cables (which are around $1000 or higher), is a slightly closed in midrange compared to say more expensive Cardas, Yamamura, MIT ref, etc.
Otherwise, detail, clarity, refinement, bass weight...all top notch! 4.75/5 stars!!!!
Otherwise, detail, clarity, refinement, bass weight...all top notch! 4.75/5 stars!!!!