After a long search I had decided on the basis of the reviews for this sub. Have incorporated into my VW Passat 13 the device. Fits perfectly into the spare wheel well. Power I got from the front fuse box. Have a 6 mm²Kabel taken (just fine and secured with 30 ampere). Mass I picked from the back (under the seat are screw (paint remove something and then fix). The signal I fetched from the rear Speakers about the high level input (+/- connected as the device and in the description). After everything was done, I fix already looked forward to the audition! Radio and then ...... well, the performance was underwhelming. Then tried on the u frequency controller to make the power controller Hab some settings - but without success. There was absolutely no pressure to the front. The built-in speakers were much louder than the Sub. If I went back I heard already humming it, but somehow he was just too weak. Even with almost full volume was front almost nothing to hear :-( After great disappointment I wanted to expand the sub again and send it back - but then I tried something else. I've got the poles +/- from High Level input reversed! And lo and behold - just great !!!! Full power and mighty much pressure! Even at low volume. just awesome! I had the sub even turn back, because you can not stand it otherwise. Sounds even better when you have the bottom flap closed. Am overwhelmed how much pressure comes forward. But watch out! The bang bags have +/- written incorrectly when Sub !!! Even in the description it is wrong !!!!!!! But otherwise great performance !!!
