So first of all the CV's are not as sensitive as the Cornwall's. You will need a lot of power to get them shaking. I managed to turn the volume up to 80 on my pre today it tops out at 100. And still 0 distortion....Wow.... I now have to Velcro all the pictures on the second level in my house to prevent movement . In addition all pots, pans, plates, glasses, and light fixtures on level 2 in my house and level 3 are now shaking and moving. Now if I could only get the Corwall 3's in the same room as the CV's ...Still love my Cornwall's but the CV's are impressive. Pics are in my profile. Cheers music fans!