The VPE Model 2 DSP Dipole Woofer was the result of three years of design and experimentation. The Model 2 provides a good fit, electrically, acoustically, and aesthetically for your larger dipole speakers, (e.g. Magnepan Models 3.7 and 20.7, Quad 2812 and 2912). It is the fastest, best-performing dynamic woofer you have ever heard because it shares the advantages of a dipole – a super-cardioid polar response and NO cabinet resonance or energy storage. The Model 2 is a cubically shaped cabinet with a floor-coupled front slot and an open back. The DSP amplifier is mounted on the back “dog-bone” panel for aesthetics and ease of connection. The Model 2 can be placed in your listening room in between your panel loudspeakers and far enough away from the back wall to provide a dipole response indistinguishable from your large dipole loudspeakers, but much lower in frequency and more powerful than panel loudspeakers are capable of operating.