AR 9LS with IMPROVED CROSSOVER Acoustic Research Tower Speakers. A great pair of the famous AR9LS speakers equipped with the improved crossover network design //. All speakers are in great shape //. Cabinets and Grills are in good shape //. The item “AR 9LS with improved crossover Acoustic Research Tower Speakers Good Condition” is in sale since Sunday, December 04, 2016. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “edgewater5111″ and is located in Edgewater, New Jersey. This item can’t be shipped, the buyer must pick up the item.