I have ordered these speakers because me a series speaker is broken! I thought to myself that it can not be worse than the original listen. That was a mistake! Sonically this loudspeaker transmits not come far to the original approach and each bass is an insult to the ears! I have found no really high standards but this is horrible! The installation proceeded only with adjustment of "plug and play" divide fairly liquid, so I had a grommet through the adapter rings and two mounting holes drill to get a really stable hold. I recommend a little more money to spend on the loudspeaker transmits that you possibly can before trial heard at Media Markt and the adapter cable and rings sold separately.