Baby Booties or Tenderfeet should do very well. Tenderfoot isolation feet, TenderSoft version, would most likely be the best choice for optimal sonic results.
(With compliant footers like Herbie's Tenderfeet, four is almost always better than three. With four, you get better lateral stability, more versatility with placement of the footers, the areas of the component chassis are more evenly divided for vibration control, you have more vibration absorbing and blocking "beef" to do the job, and most importantly you'll virtually always get an audibly superior result.)
Herbie's Audio Lab