Tips RCA cable

My experience with the Oehlbach BEAT! NF-audio RCA cable.
Since February 2011 I use several of these RCA cable to my audio system from Yamaha. Previously, I used the original RCA cables which were supplied.
At that time I had a very annoying problem with my Yamaha conditioning. After power was permanently a basic hum from the speakers to hear. Even after exchanging individual decks (amplifier, CD player, etc.) continued to hear the buzz. In hi-fi retailers they recommended me stronger speaker cables, but this brought no improvement. Also, placing Suppression of ferrite rings on the power cords only led to no success. While the buzz was a little bit quieter, but it was still clearly audible. Commercially they recommended then to replace the original RCA cable by higher me. My choice fell on Oehlbach BEAT! NF-audio RCA cable. I exchanged all the cables and it was absolutely not hear more buzz.
The Oehlbach RCA cable I use now for well over 2 years and everything works fine. About once a month the system for removing dust is built completely from time. The connectors can be today as mount and sit easily on the first day bombs firmly.
The purchase price of approximately 25 Euro per cable is justified. The cables make a very high-quality impression. The company Oehlbach are on this cable a 30-year warranty.
In another cable from Oehlbach (Optical Digital Cable) I had taken the Oehlbach-warranty service recently. Although I had accidentally caused the damage himself, my cable without discussion was replaced for free and immediately with a new one.

This RCA cable I use as follows:
x CD - Amplifier
x minidisk - Amplifier
x cassette - Amplifier
x Turntable - Amplifiers

These cables I am very satisfied and discounts for 2 years after purchase. The noise is gone and until today, I had no other problems. I highly recommend this cable without hesitation.