After one year, some of them were making a loud noise, not all of them and especially in mixer connections, pre and final

Very good construction, it constantly produces noise when connected to any mixer... Clearly, the cable is to blame...

Taking into consideration its low cost, it is a very good choice for applications where we simply want basic quality or to replace stock interconnects. Sound-wise, it does not lack in any way, even compared to cables that are twice the price, if someone wants to move on to something better than budget. I initially used them to connect my HTPC and later my TV to an amplifier with very good results. Acoustically, it's a solid 5, however, I give it a 4/5 only because I would prefer not to have such "cheap-looking" plastic on the casing.

Top choice RCA cable for use in an audio system in terms of performance/price ratio. I don't think there is anything better in this price range.

This is a very high-quality cable for its price. It is quite thick with OFC characteristics, which enhances the quality of the transferred sound. I connected my favorite classic audio devices, namely the Technics CD player SL-PG590 and the Technics SU-A900 amplifier.
The connection is somewhat tight, obviously to minimize losses. The build quality is very interesting. The sound is detailed, lively with deep, vibrant bass.
I highly recommend it for all audiophiles who are looking for the best possible value for money sound quality.