Peter Zaret has given permission to Ronald Sachs of Ronald Sachs Violins www.ronaldsachs.com (in Atlanta, Georgia) to use Peter's patented bass bars in the Koberling violas that he carries. These instruments will be available in the southeast United States. Violas benefit dramatically from Peter's bass bar innovation - if you're near Atlanta, stop by Ronald's shop and try one out!

Dr. Zaret's bass bar has been independently tested by Norman Pickering and Oliver Rogers, both world renowned acousticians. Click here to view their technical data.