i bought Quattro reference cables both 1M ic,s and a 8' biwire set of loudspeaker cables when i purchased my Khartago monos from Klaus. they were much more natural and relaxed sounding compared to my previous Audioquest Copperheads. i bought a highend Symphonic Line CDP that was previously owned by Klaus and figured it deserved a higher resolution ic cable so i tried the TS premiums and they took my system to a whole new level. i currently have my Quattro ic and speaker cables on loan to a cable swap program on another forum that i belong to. i dont participate in the program myself but i thought it was a noble cause helping other folks try different cables in thier systems in order to find the best cables for thier particular systems without spending alot of money trying to find the right cables for thier particular system. the TS premiums are the best sounding cables i have ever heard bar none!
