I've had this mic pre for about 2 years, and everything is in perfect working order. It still has the original tubes, which should be good, since it's only seen very light use while I've had it. I've been on the road most of the time I've owned it. When I have used it, it sounds great!
The item "Universal Audio Solo 610 in Excellent Condition" is in sale since Wednesday, October 12, 2016. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "sonlittle" and is located in Trenton, 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.