@rauliruegas, et al: I wish I could be surprised, by the marked propensity of so many on the 'GoN to assume and advise others; there has to something wrong with their system, without ever being within 100 Kilometers of same.
Let alone: ever having listened to or tested the other's system.
"I never can put my hands in a NOS Unitrac and the only time I was nearer to I losted on ebay auction, my lost because I wanted to test it."
To be clear: are you admitting never having actually tested or auditioned the Unitrac I; with or without any of my previously mentioned cart choices?
"Btw,my room/system is fine tunned through nearfield real MUSIC tracks LPs tests."
AS IF: the cited test LP assuredly must be the only way I have fine-tuned MY room/system?
Never mind: over five decades of familiarity with the sound of the REAL thing, in a plethora of acoustic environments (good and bad/unplugged and reinforced), when on stage, in a sound booth, an audience and in live venues of my own design and/or recommendations?
NOT that I think I have it all together. Something Feynman often mentioned, during his lectures, when fondly reminiscing about his father, "Never stop learning", (one of his rules of life) has always resonated within me.
However: I was NOT born yesterday!
"...if you don't like it always can return to the Unitrac."
I'm kinda one of those, "If it ain't broke: DON'T FIX IT" types.
At the age of 74: I'm not inclined to kid myself about (what's left of) my aural acuity. Yet my system still manages to amaze my few musician friends extant, as well as those new, I allow to visit my swirling vortex of entropy (read: pathetic, embarrassing abode).
"...enjoy the MUSIC NOT DISTORTIONS"
Trust me: I do TRY!
Happy listening and enjoy the journey!