Good.
We are in the first price, I didn't expect better.
Not as good as my original 306 break 2.0hdi speakers.
The original speakers were 260,000km/17 years old and had almost no foam left :D.
There are adapters for the original plug.
For the tweeters, just make a nice solder with heat shrink tubing.
If you are looking to replace your speakers to replace the original ones that are out of order or really crappy they are perfect.
But if you are looking for a good audio quality that doesn't saturate "too" fast, don't bother.