Completely refurbished and checked by a qualified valve specialist

If you are looking at this advertisement, it is likely that you are already aware of these outstanding amplifiers from the wonderful Italian company Unison Research. These power Amplifiers are a single-ended triode tube Monoblock design with three tubes a side. Two are dual-triodes input tubes: the 12AX7 and 12AU7, driving an 845 power triode. There is a large ceramic shell which cradles the 845 tube and shields the transformer. Delivering 20+ watts of Class A power, these amplifiers will drive most reasonably efficient high quality spea...