Even so, the mass of critical "connoisseurs" were struck by the way in which Klaus was able to solely produce such perfect music in his studio - without outside assistance. Then another turn in the Wunderlich career happened in 1977, when WERSI released a new generation of electronic organs - the HELIOS - which heralded new live concerts and television performances. In the capable hands of Klaus Wunderlich, this organ could sound like a full symphony orchestra ... and did so - as the live In Concert recordings have proven. And so it happened, that once again we spoke of sold-out Wunderlich concerts, especially in England - where he became a deserved star. In April 1978, Klaus succeeded in giving his second concert within one year - in a completely sold-out London Royal Albert Hall before an audience of 6.000 people.
In the course of time, the HELIOS Organ was, in technical fashion, not sufficient to comply with current demands. According to the secret of his success "Never rest on your laurels - always step side by side with times - I mean that quite consciously in the musical as in the technical sense", Klaus Wunderlich added the digital organ BETA to his analogue HELIOS at first, then finally replaced both with the Wersi SPECTRA in 1988. Klaus always got the best out of his organs.
"When I do my recordings, I really do play all instruments - the organ, the percussion, the small MOOG Synthesizer (for the bass) and the Wersi Pianostar (for the rhythm-guitar) - on my own. In my studio I use eight tracks. Everything is recorded separately and corrected if necessary, then finally mixed on a normal studiotape (two tracks, stereo)”.