The 1961 Subwoofer 1V is simply put a 1961 Subwoofer 1S on steroids. Same solid HDF enclosure but larger and equipped with a high precision slot port. Using our proprietary 12.2” driver driven by our unique 550W RMS Avalanche 550 IQ DSP amp, the cabinet volume has been sized to produce an optimally damped system, producing low distortion, extremely dynamic and natural deep bass. Using many of the same features from 1723 series, you can be sure this subwoofer packs extreme amounts of listening pleasure (and pressure..) regardless of its price point. The enclosure is ported, which can also be sealed for those who wants the edge in extra dynamics over sheer depth. 1961 Subwoofer 1V can deliver massive performance on movies, with real attention to detail and nuance in music. Movies or music. Perfect for both.