The HGS-X Series subwoofers, consisting of the HGS-10X, HGS-12X and HGS-15X, deliver Velodynes world-famous accurate, low distortion bass less than 1% distortion all the way down to 20 Hz and below. To power these incredible subwoofers, Velodyne uses a digital switching amplifier that produces 1250 watts RMS with a dynamic power rating of over 3000 watts. This exclusive technology creates the highest amplifier efficiency ever achieved in the audio industry. These subwoofers are excellent choices for in room use or custom installation.