Can you put a rough level of vibration / noise reduction in DB over "standard"? The Velodyne in-wall has been designed NOT to excite the drywall causing unwanted wall noises. "Standard inwall" subwoofers are on the same plane as the wall causing it to vibrate, then vibrating other things on the wall such as pictures. The force output from the Velodyne in-wall is 90 degrees to wall thus all acoustic energy from the driver is inline with the studding, minimizing vibration.