Electraglide Epiphany vs. Shunyata Helix Python VX on Esoteric X-01 in brief:
Epiphany: Sonically grand, Giant outwardly layered sound stage, forward, energetic fast transients, energetic treble, overlapping large instrument images. Attenuated sustained bass and mid bass Can sound chesty on bowed cello. Impressive on plucked strings and percussive music. Treble energy may sound excessive to some listeners.
Shunyata Helix Python VX: Extremely musical and controlled, Moderately large sound stage, moderately recessed and three-dimensional, realistic transients, treble to bass extended but controlled, instrument images extremely well defined with 'air' around them, significant amounts of low level instrument and hall decay. No glare. Bowd cello moderately resonant on all 4 strings. Appears to require slightly more linestage gain than Epiphany. Slightly layed back compared to Epiphany for some listeners.
We all seemed to concur that Python is overall more 'musical' than Epiphany, while Epiphany is more 'impressive'. In an ideal world we would like to experience the sheer grandness of the Epiphany combined with the musicality, controlled extension, precise and graceful imaging and sweetness of the Helix Python. Would the Anaconda Helix VX be perhaps the solution? Or perhaps the Anaconda helix Alpha, as the X-01 may perhaps not require the extra filtration provided by the VX series? More testing is required. If the choices were only the two cables tested, Babybear would prefer to live with the Epiphany, while Guido and CMO would feel happier with the Python Helix VX.
Overall system consisted of the following components/wires:
Teac Esoteric X-01, powered by both Epiphany and Python Helix VX.
VAC Ren II powered by Shunyata Anaconda Alpha (non Helix).
Theta Citadels powered by Elrod Statement 1.
Vandersteen 5A.
Ics were all AudioQuest Sky XLR.
Speaker wire were Audio Quest Kilimanjaro biwire shot gun..
Power for all components was regenerated by Exact Power EP15A units.