I do not know a lot about speakers, but I know these sound spectacular. From what I have read they are highly regarded audiophile speakers. I bought them a year ago from a friend who needed extra cash. My wife doesn’t like the size and look of them in the living room, so I’m forced to sell them. The speakers work like new and sound great. The item “Acoustic Research AR 5 Speakers” is in sale since Wednesday, July 13, 2016. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Speaker Drivers, Horns”. The seller is “09cboeck” and is located in Cincinnati, Ohio. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ID, to Taiwan, ZA, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY, BR, CL, CO, CR, DO, PA, TT, GT, SV, HN, JM.