Poor transmission quality

The cable makes a high impression, and fits perfectly into the existing socket.

Unfortunately, the transmission quality is very poor - that is, it is "schnarzen" in some pitches a comic before.
For the titles tested These were titles that were acquired via iTunes and demonstrate a high quality.
For comparison, I transferred my iPhone 5s the same title via Bluetooth to the system.
Although there are the same title, the audio quality is worlds better and the "schnarzen" does not occur.

Unfortunately, the product has to go back.