I bought the Goldkabel professional RCA cables together with my Marantz CD6005 CD player because I have to get it at a very good price. My home theater system is otherwise completely connected with Oehlbach cables. I've been using the Goldkabel professional Cinchcable my Marantz CD6005 CD player with my Marantz SR6008 AV receiver connected.
Now we come to the actual review.
The Goldkabel professional RCA cable is very high quality. Both the plug and the cable itself feel good and make a solid and trustworthy impression. The plug firmly and without play sitting in the RCA jacks on the player and the receiver. The cable is quite rigid by the 4 layers of shielding. This should be kept in mind before buying, because it is thereby turn not very good or relocate. If the devices are one above the other, but you should have no problems.
Whether the cable has a better sound than the Beipackstrippe from Marantz CD player or other "cheap cable" I can not judge because I have not tested it. For my part I must also admit that this is not the reason to buy a high-quality and more expensive cable. For me, a cable must be well made and well seated in the sockets of the devices.
Overall, I can forgive a clear conscience full 5 stars for this RCA cable because it is very well made and fits perfectly in the speaker terminals. Also the price is for this quality more than okay.