This is a set of 4 potentiometry, these are brand new, custom-made wirewound potentiometers designed specifically as high-quality replacements for the original level controls used in Acoustic Research AR-2a and other vintage AR speakers. Construction: Ceramic body for improved heat dissipation. Type: Precision wirewound potentiometer. Condition: Brand new, never used. Bonus: Complimentary installation instructions and full AR-2a schematics in PDF format. Unlike the original controls, these new units are built to handle higher thermal loads and provide smooth, consistent operation over the full rotation range. The ceramic housing ensures excellent durability and helps dissipate heat efficiently, extending the life of the control and preserving sound quality. Each kit comes with detailed installation instructions and original AR-2a schematics in PDF format, provided as a complimentary bonus to assist with a smooth and accurate restoration process. Perfect for restoring your AR-2a speakers to top performance – or upgrading other vintage AR models that use similar 16? Level controls. We also offer a great selection of. And other rare/unique parts. Make sure to check our store. (Use the search bar inside the shop to find what you need faster). We may also be interested in purchasing your audio equipment.