The album Ut, with a heavier sound, closer to hard rock caused the split of the band with the two leaders Di Palo and De Scalzi going in two different ways. A legal struggle followed, for the use of the famous name, and while Di Palo with the other three chose the Ibis way, in a hard rock direction, Vittorio De Scalzi formed a new band, called N.T.Atomic System to avoid contractual problems, and with a more polished sound. To help their fans to recognize this band as the real New Trolls, early copies of the album had a sticker on the sleeve covering the N.T. name with the full New Trolls brand.
N.T.Atomic System released their first album in 1973, a nice album with a large use of horn instruments, De Scalzi himself playing flute and keyboards along with guitar.