These have very little use (about 10 hours) and are in mint condition. The op amp mod makes these preamps in a league of their own. You will love the versatility and punch that your recordings gain from this unit. The item "Warm Audio TB-12 Tonebeasts MODDED pair" is in sale since Tuesday, November 22, 2016. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips".The seller is "farewelladdress7" and is located in Vineland, New Jersey. 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, 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.