The Unico Nuovo shares with Unico P & the Unico Primo a project based on a single triode pre stage, it differs, however, from the first for the use of valves in place of ECC83/12AX7 ECC82/12AU7 & from the second for a different polarization as the single triode that has been replaced by two parallel elements. A single-stage triode produces mainly second-order harmonic components with better results in terms of detail & clarity of music.