Hello together, after having posted some questions about this some time ago, it was Saturday. I decided for the Alpine SWD-2000 Aktivsubwoofer. This seems to me to be a good compromise from good performance/sound, a lot of left-hand luggage room and not the “Proll-Image”, or is it. Again many thanks to Mikedti for the tips regarding the trouble-free disassembly of the hat rack. At first I was somewhat skeptical whether this woofer, since there was no Reviews in Internet forums gave, but I was not disappointed. The sound is really well upgraded. It should be said that I rather rock (Pink Floyd, Nirvana, Billy Idol, Guns&Roses etc.) listen to music, Techno and Black-Music rarely until never. I can really recommend it. The back bench is still foldable and the load can be used to 90%. Picture is given in the appendix. (May I be excused that I only sucked dust after the photo)