As always delivered super fast, which was a big surprise, because I had not so expected a giant of the well is still so hard, high perceived 10kg 3 floors. Meticulously crafted, many connection and adjustment options and the most important thing: A Bass the speaker cone either dezend music "mitbrabbelt" or depending on the setting for the Floor can do and without any Verzerrung.Ich have it connected to a small plant that Denon a sub-out output has (unreinforced) and this woofer evaluates this system again to 100% on the Sound. Even the woofer automatic one-off and is having in this price range rather unusual. I rarely for so relatively little money to get as much as high-quality technology with this subwoofer !!