One AR 3/4 inch, frerro fluid cooled, soft dome high range tweeter for the original AR 9 Series speakers. This is a New Service Replacement. These have become exceptionally difficult to locate. Initially, we have six available. My experience tells me that if you are to have a failure, it will likely be the tweeter. You can also find our replacement dispersion ring in this Dept. The AR-9 Tweeter had two production variations with this silver ring. One had the smaller diameter surrounding the dome. The second was a similar silver ring but of larger diameter and closer to the outer edge. The performance is identical. Note; the rear terminals are in a slightly different position. You might need to notch the mounting hole a bit to clear the terminals. This was offered as a Service Replacement after the AR 9 Series Speakers were no longer in production. We believe you will be pleased. If you would like to be advised of new and exceptional items along with our sales, please sign up for our Newsletter. The free listing tool. The item “ACOUSTIC RESEARCH AR 9, AR 90, AR 91, AR92 NEW OLD STOCK SERVICE REPLACEMENT TWEET” is in sale since Monday, August 15, 2016. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “vintage-ar” and is located in Albany, New York. This item can be shipped worldwide.