Visually appealing, electrically disappointing

At first glance, the cable looks reasonable. The dimensions of cables and connectors there are also no complaints. Right after plugging, between here and smartphone powered speakers, shows the weakness of the cable. The signal comes muffled. The cable has a resistance of about 2.2 ohms per line length. Due to the thick cable pictured I came out with the order of a very low resistance. Obviously, it seems here, but only a thick insulation and a calculated copper diameter of just 0.2 mm to act.
The aluminum caps are screwed only as a show element to the soft and fine plastic thread, which can be easily turned over. For the transmission of analog signals I advise against the purchase of the cable and for the transmission of digital signals (lettering on plug) I have no use for such an adapter cable. Actually, I should return it. Due to low purchase price but I will spare me this expense and trouble and just buy another cable.