3i is one of the most popular models among the integrated amplifiers within the AUDIO SPACE family, especially for audiophiles with the more refined taste for music. It uses 4 pcs of EL34 plus 2 12AU7 and a and a 12AX7. It packs enough power to drive most floor-standers and bookshelf speakersand yet retains the smoothness and details for the most discriminate ones.