A pair of new knobs for the rear mounted High and Mid Range controls on the AR-3a and AR-5 speakers. Most of the other Vintage AR speakers AR-3, AR-2x, AR-2ax, AR-4x, AR-4xa, etc. Did not include the knobs but these may be used on these models also. A nice addition to a restored pair or if they have been lost over the years. One pair is sufficient for one speaker, two pair is required for a pair of speakers. Please browse our entire store. If you would like to be advised of new and exceptional items as well as our sales, please sign up for our Newsletter. We will combine your orders and return one invoice. The free listing tool. The item “ACOUSTIC RESEARCH AR-3a SPEAKER CONTROL KNOBS NEW, SAME MANUFACTURER” is in sale since Friday, November 21, 2014. This item is in the category “Consumer Electronics\TV, Video & Home Audio\TV, Video & Audio Parts\Speaker Parts & Components”. The seller is “vintage-ar” and is located in Albany, New York. This item can be shipped worldwide.