You want ultra-deep bass that you can not only hear but also feel? Then you have 2 options: 1) you use conventional subwoofers and turn up the volume to the pain threshold or 2) you use the "Bass-Pump III". Compared to normal speakers, the heavy "Bass-Pump III" has no diaphragm. Instead, it is firmly screwed to the vehicle floor. As a result, the structure-borne sound perceived as deep bass is transmitted directly to the listener. Now you feel the music with the intensity of a live concert even at moderate volumes. But the "Bass-Pump III" can be used not only in the car. Home cinemas, Dolby surround systems, hi-fi systems and multimedia shows also experience a real enrichment. The connection is very simple and is done like a normal loudspeaker or subwoofer.